Igneous rock
Impedance
Imperial Crown
Imperial State Crown
Implement
Incandescence
Inch
Income Tax
Indian ocean
Indigestion
Indium
Indonesian
Inductance
Infra-red
Interface
Interlisp
Interpol
Intestinal
Invar
Invisible
Iodine
Ion
Ionised
Ionization Voltage
Ionosphere
Iridium
Iridosmine
Irish
Iroquois cup
Irradiation
Irrigation
Isosorbide Dinitrate
Isosorbide Dinitrate is an anti-anginal drug used to reduce the
Isotope
Isoxsuprine
Isthmian Games
J-aerial
Jah
Jansky
Jazz
Jetsam
Johnson Noise
Jota
Judo
Judy
Jujitsu
Jurassic
Jute
K-band
Kabbala
Kaftan
Kathode
Kauri gum
Kayser
Kelvin
Kennelly-Heaviside Layer
Kenotron
Keratin
Kichel
Kid
Kie kie
Kin
Kinescope
Kinetic Energy
Kinetics
King's evil
King's sceptre
Klystron
Knight
Knighthood
Knot
Knowledge
Koh-i-Noor diamond
Kohl
Koto
Krypton
Kung Fu
Kwan
L-band
Labret
Labyrinth
Lachrymation
Lacrosse
Lactic acid
Lactoglucose
Lactose
Ladanum
Ladino
Laevulose
Lagoon
Lallans
Lamb
Lambda
Lambert
Lambrequin
Lamella
Lamina
Lamp
Lampas
Lancastrian
Lancet
Landau
Landscape
Lane
Lanolin
Lanthanide
Lanthanum
Lanyard
Laparotomy
Lapel
Lard
Larder
Lardon
Larixinic Acid
Laser
Lassa fever
Lasso
Latchet
Lath
Lathe
Laths
Latin
Latten
Lattice
Igneous rock is rock formed from cooling lava.
Impedance is the total opposition offered by a circuit to the flow of alternating current.
The Imperial Crown was made for King George V for his coronation as King Emperor at Delhi in 1911, and is part of the British Crown Jewels.
The Imperial State Crown was designed and made for Queen Victoria in 1838. It is one of the British Crown Jewels.
Implement is a method of execution carried out by thrusting a stake through the body.
Incandescence is the emission of light due to heat.
The inch is a unit of the imperial scale of measurement of the length equivalent to 25.4 millimetres.
Income Tax is a tax levied directly from income of every description. It was first levied in Britain in January 1799, then repealed in 1802 and reinstated the same year under the name of Property Tax. It was fixed at 10% in 1806 and repealed in 1816 only to be reinstated in 1842. Since then the rate has fluctuated with the political whims of the current ruling party, and it is currently graduated but starting at 20%.
The Indian ocean is the sea separating Africa from Australia. It has a total area of 73,600,000 km2
see "Dyspepsia"
Indium is a soft, rare metal element with the symbol In.
see "indonesia"
In electronics, inductance is the property of a circuit whereby an electro-motive force is generated by reason of a change in the magnetic flux through the circuit.
Infra-red radiation (heat waves) consists of electro-magnetic radiation of wavelengths shorter than those of the super-high-frequency radio waves and longer than 7600 angstroms, corresponding to the red end of the visible spectrum.
An interface is a shared boundary between two devices. These may be a human and a machine for example. Computer operating systems use an interface to receive and transmit data to and from a human operator.
Interlisp is a dialect of the Lisp programming language. It is a computer programming language designed for procedure orientated representation. It has all the standard features of Lisp, plus extensive debugging facilities, and a DWIM self-correcting facility.
Interpol is an international police organisation with headquarters in Paris.
see "Intestine"
Invar is an alloy of iron and nickel.
Invisible describes something that cannot be seen.
Iodine is a non-metal element with the symbol I.
An ion is a charged atom or group of atoms. The charge occurs from a surplus or deficiency of electrons.
see "ion"
Ionization Voltage is the potential which an electron must traverse before it attains sufficient kinetic energy to ionize by collision an atom of a specified gas.
The ionosphere is the ionized layer of the earth's atmosphere. It extends over altitudes from about 50 km to about 600 km.
Iridium is a metal element with the symbol Ir.
see "Osmiridium"
Irish is a term used to denote something or someone from Ireland.
The iroquois cup is an English lacrosse tournament.
Irradiation is the process of exposing something to radiation. It is used to preserve food and destroy cancer growths.
Irrigation is the process of supplying water to land through a series of artificial waterways.
frequency and severity of angina attacks.
An isotope is a form of an element which has a different atomic weight and nuclear properties than other isotopes of the same element.
Isoxsuprine is a vasodilator drug used to improve poor blood
circulation.
The Isthmian Games were a Greek athletic contest held at Corinth. They were first held in 523 BC and resemble the Olympic games except that the victor received a crown of wild parsley.
A J-aerial is a dipole type aerial consisting of a three-quarter wavelength vertical portion and a quarter-wavelength portion parallel to it, the feeding points being equidistant from the junction.
Jah is the Jamaican, and more especially the Rastafarian, name for god.
The Jansky is the unit of radiation received from outer space, used in radio astronomy. It is equal to 10-26 watts per square meter per hertz, and is named after the USA engineer Karl Jansky.
Jazz is a lively type of music which originated in America amongst the black community.
Jetsam are goods thrown overboard in a storm, or after a shipwreck, and cast upon the shore.
In electronics, Johnson Noise is unwanted voltage variations which manifest in a receiver as noise and in other types of apparatus as spurious signals in the output. Johnson Noise is due to the random motion of electrons in a conductor, which increases with temperature.
The jota is the national dance of Aragon.
Judo is a form of Japanese wrestling.
Judy is an English slang expression for a woman.
Jujitsu is a Japanese form of self defence.
The Jurassic was the tenth geological period, 135,000,000 years ago. The first mammals evolved.
Jute is a fibre obtained from plants and used for making sacks.
K-band is the frequency band from 10,900 to 36,000 mhz, about 1 cm wavelength, employed in radar.
see "Qabbala"
see "Caftan"
see "Cathode"
Kauri gum is fossilised copal found in New Zealand.
The kayser is the unit of wave number (number of waves in a unit length), used in spectroscopy. It is expressed as waves per centimetre, and is the reciprocal of the wavelength. A wavelength of 0.1 cm has a wave number of 10 kaysers.
Kelvin is a temperature scale in which the absolute zero of temperature (-273 degrees celsius) is represented by zero degrees kelvin.
see "E Layer"
A kenotron is a high-voltage thermionic diode rectifier.
Keratin is a fibrous protein.
Kichel is a type of small cake.
A kid is a baby goat.
The kie kie is an item worn around the waste of all Tongans to formal occasions as a symbol of respect to God, King and Country.
The kin was a Japanese unit of weight equal to 1.3228 lbs.
Kinescope is a name mainly used in America for a cathode ray tube used in a television receiver.
Kinetic energy is the energy possessed by a body by virtue of its motion.
Kinetics is the branch of dynamics dealing with actual motion.
King's evil was a popular name for Scrofula.
The King's sceptre is part of the British Crown Jewels and contains the largest part of the Star of Africa diamond which weighs over 516 carats.
A klystron is a thermionic tube suitable for use as a microwave amplifier or oscillator, in which the electron stream is velocity-modulated.
Historically, a knight was an honourable military rank which was bestowed upon a noble who had served as a page and squire by the king. Today a knight is a social title bestowed upon people for supposed service to the crown or country, and entitles them to be called "Sir" rather than "Mister".
Knighthood is the social rank of knight.
In navigation the knot is the unit by which a ship's speed is measured, equivalent to one nautical mile per hour (one knot equals about 1.15 miles per hour). It is also sometimes used in aviation.
Knowledge is practical understanding.
The Koh-i-Noor diamond is a fabulous diamond of 106 carats and is mounted in the State Crown.
Kohl is antimony sulphide used by women as eye make up.
The koto is a stringed musical instrument from Japan.
Krypton is a gaseous element with the symbol Kr.
Kung Fu is a form of Chinese unarmed combat.
The kwan was a Japanese unit of weight equal to 8.2673 lbs.
L-band is the frequency band from 390 to 1550 mhz employed in radar.
A labret is an ornament inserted in a hole pierced through the lip.
A labyrinth is a maze like structure.
Lachrymation is the anatomical term for the shedding of tears.
Lacrosse is a ball-game originally played by North American Indians with twelve players on each side, in which the ball is flung by and carried in the crosse, the object being to throw the ball through the opponents' goal.
Lactic acid is an organic acid formed by certain bacteria during fermentation. It also occurs in the muscles when they are exercised vigorously. It is used in food preservation and pharmaceuticals.
see "Galactose"
Lactose is a sugar found in solution in milk. It is the combination of glucose and galactose.
Ladanum is a gum resin extracted from plants of the genus Cistus and used in perfume.
Ladino is a Spanish dialect spoken by Sephardic Jews.
see "Fructose"
A lagoon is a shallow stretch of salt water partly or wholly separated from the sea by a narrow strip of land or a low sand-bank or coral reef.
Lallans is a Lowland Scottish language.
A lamb is a young sheep.
Lambda is the 12th letter of the Greek alphabet.
The lambert is the unit of luminance (the light shining from a surface), equal to one lumen per square centimetre. In scientific work the candela per square meter is preferred.
Lambrequin was originally a material covering worn over a helmet. It is now a term applied to a short piece of drapery hung over the top of a door or window.
A lamella is a thin plate, scale or film of bone or tissue.
The lamina is the blade on the leaf on either side of the midrib on flowering plants. It is usually the primary organ of photosynthesis.
A lamp is a vessel filled with oil and fitted with a wick which is then used to provide light. The term has come to apply to any device which provides illumination, including electric lamps.
Lampas is a horse disease with a swelling in the roof of the mouth.
A Lancastrian is an inhabitant of Lancashire.
A lancet is a fine pointed, double-edged surgical knife.
A landau is a four-wheeled carriage with a top, the back and front of the top can be raised and lowered independently of each other.
Landscape is a term applied to inland scenery, or a picture of inland scenery.
A lane is a narrow road, usually between hedges, or a passage way.
Lanolin is a wax derived from sheep's wool.
The lanthanides are a group of 15 elements.
Lanthanum is a rare metal lanthanide element with the symbol La.
A lanyard is a cord attached to a knife or whistle with which to hold it, or to serve as a handle.
A laparotomy is a surgical incision through the abdominal walls into the abdominal cavity.
A lapel is a part of the front of a coat which is folded back towards the shoulder.
Lard is the rendered and clarified internal fat from the abdomen of pigs or cattle used in cooking and pharmacy.
A larder is a room or cupboard used for storing provisions.
A lardon is a strip of bacon or pork used to lard meat.
see "Maltol"
Laser is an acronym for Light amplification by stimulated emission of radiation. It is a device producing an intense narrow beam of light.
Lassa fever is an incurable fever caused by a virus carried by a species of rat found in west Africa.
A lasso is a rope with a running noose used for catching cattle.
A latchet was a thong used for fastening a shoe.
A lath is a thin narrow strip of wood. Laths are used for supporting plaster, and to construct trellis.
A lathe is a machine used for turning wood, metal and other materials by rotating the article against tools which cut it to shape.
see "Lath"
Latin is an Indo-European language which originated amongst the people of ancient Latium and the Romans.
Latten is a yellow alloy of copper, zinc, lead and tin used for making monumental brasses and church candlesticks.
A lattice is a framework of laths crossed diagonally so as to form a net-like structure to be used as a screen or door.