General Information (Q-R)


Q-band
The Q-band is the frequency band from 36,000 to 46,000
mhz employed in radar.

Qabbala
The Qabbala (Cabala, Caballa, Kabbala) is an ancient esoteric tradition of the
Jews. It was supposedly given to Moses on mount Sinai in a revelation.

Qabbalistic
see "
Qabbala"

Quadriga
The Quadriga was an ancient
Greek and Roman two-wheeled chariot drawn by four horses abreast and used for racing.

Quadrille
The quadrille is a square
dance for 4 couples. It was first danced in England in 1815 and superseded in 1850 by the lancers.

Quaestor
A Quaestor was ancient
Roman magistrate who was concerned with receiving taxes and tribunes, paying the troops and generally looking-after the money.

Quandang
Quandang is the edible
fruit of a species of the sandalwood tree.

Quart
The quart is a unit of capacity measurement equivalent to 2 pints or 1.136 litres.

Quarter
The quarter is a unit of measurement of the
avoirdupois scale equivalent to 28 pounds or 12.7 kilograms. The quarter is a unit of capacity measurement equivalent to 8 bushels or 2.909 hectolitres.

Queen's prize
The
queen's prize is an English shooting competition.

Quinine
Quinine is an anti
malaria drug derived from the bark of the cinchona tree.

Quire
A quire is a measurement of writing paper equal to 24
sheets. 20 quires make 1 ream.

Radar
Radar is a system of locating an object or direction finding using high frequency radio waves.

Radian
The radian is the
SI unit (symbol rad) of plane angles, an alternative unit to the degree. It is the angle at the centre of a circle when the centre is joined to the two ends of an arc equal in length to the radius of the circle. There are 2 pi (approximately 6.284) radians in a full circle (360 degrees). One radian is approximately 57 degrees, and 1 degree is pi/180 or approximately 0.0175 radians. Radians are commonly used to specify angles in polar co-ordinates.

Radiation
Radiation is the emission of
energy rays from an object. In particular the term is applied to the emission of X-rays.

Radioactive
Radioactive
elements are those of high atomic weight (radium, thorium, uranium etc.) which spontaneously emit alpha, beta or gamma rays.

Radioactivity
Radioactivity is the spontaneous disintegration of an atomic
nucleus to produce more stable nucleus and accompanied by the emission of charged particles and possibly also gamma rays.

Radiography
Radiography is the production of images on a flourescent screen or photographic plate by means of X-rays.

Radiolocation
Radiolocation is the original and
now old term for Radar.

Radiology
Radiology is the
branch of medical science covering the examination of the body by X-rays, the interpretaion of X-ray photographs and the treatment of disease with X-rays.

Radium
Radium is a
radioactive gaseous element with the symbol Ra.

Rain
Rain is condensed moisture from the
atmosphere which falls to the ground in visible separate drops.

Ranch
A ranch is an establishment maintained for raising livestock under
range conditions, that is with wide open pasture.

Rayon
Rayon is an artificial
silk made from cellulose.

Ream
The ream is a unit of writing paper measurement equal to 20 quires or 480
sheets of writing paper, 516 sheets of printing paper.

Recorder
The recorder is a
woodwind musical instrument.

Red
Red is one of the primary colours. It is the colour of the spectrum which is farthest away from
violet. Red pigments are derived from cinnabar, realgar, cochineal and coal-tar.

Red dwarf
A red dwarf is a
cool, faint star.

Red giant
A red giant is a
cool, bright star.

Red-lead
Red-lead is an
oxide of lead used as a red pigment.

Reefer
A reefer is a refrigerated cargo
ship.

Reflex
A reflex is an automatic response to a stimuli.

Reichstag
The Reichstag was the
German parliament building.

Relativity
Relativity is a theory concerning the nature of space and
time propounded by Einstein.

Renaissance
The renaissance was an intellectual period between the 14th and 17th centuries.

Resin
Resin is an
adhesive and inflammable substance which is insoluble in water secreted by plants and animals.

Rhenium
Rhenium is a
metal element with the symbol Re.

Rhizome
In
botany, a rhizome is a sort of stem running along the surface of the ground, or partially subterranean, sending forth shoots at its upper end and decaying at the other.

Rhodium
Rhodium is a
metal element with the symbol Rh.

Rhythm
Rhythm is the beat behind a piece of music.

Ribble-Row
Ribble-Row is rambling, meaningless chatter.

Ribbon
A ribbon is a woven narrow band of
silk or other material used for adornment.

Riboflavin
see "
Vitamin B2"

Rice
Rice is the seeds of a
grass grown in marshes mainly in the orient.

Ricin
Ricin is a
poison extracted from the leaves of the castor oil plant.

Rickets
Rickets is a defective
growth of bone disease caused by a lack of vitamin D.

Ricochet
A ricochet is the rebounding of a projectile.

Riddle
A riddle is a question designed to test ingenuity or give amusement.

Rinderpest
Rinderpest (also called
cattle plague) is an infectious disease affecting cattle, sheep, goats, camels, deer and similar animals. It was endemic in central and south Asia during the 1920s and occurred in Western Europe only rarely through the importation of infected cattle, a notable instance occurring in 1872 as a result of the importation of infected cattle from Germany.

Ringworm
Ringworm is a fungus infection of the
skin, usually affecting the scalp and characterised by the development of a bald spot which is scaly and has broken hairs on it.

Robe
A robe is a long loose outer garment.

Rocker
A rocker is a curved
bar fixed to an item so that it may rock.

Rocket
A rocket is a cylindrical
case which can be projected as a result of the reaction of gases discharged from its rear when its combustible contents are ignited.

Rococo
Rococo is a style of decoration which originated in
France and Italy in the 17th century.

Romaika
Romaika is a book detailing
Roman history from its earliest times to the first century. It was written by Dion Cassius, the Roman historian.

Rontgen
The rontgen is the unit of X-ray or gamma ray
radiation.

Rontgen Rays
see "
X-Rays"

Rood
The rood is a unit of measurement of area equivalent to 1210 square
yards.

Root
The root is that part of a
plant which is below or in the soil and serves to attach the plant to the soil, and conveys nourishment from the soil to the plant.

Rope
Rope is a
stout cord in excess of one inch in circumference.

Roquelaure
A roquelaure was a
man's cloak popular in the 18th and 19th centuries.

Rosaniline
Rosaniline is a base
compound of many aniline dyes. It is a basic compound prepared by oxidising a mixture of aniline and toluidine by nitro-benzene in the presence of ferrous chloride. Rosaniline itself is a colourless solid, but if converted into a salt by the addition of an acid, it loses water and becomes coloured.

Rosary
A rosary is a string of beads used in religion to count prayers.

Rose's Metal
Rose's metal is a fusible alloy consisting of 50 per cent bismuth, 25 percent lead and 25 per cent tin.

Rosein
see "
Magenta"

Rosetta stone
The rosetta stone is a tablet bearing an inscription in
Greek, and hieroglyphics. It's discovery by Napoleon's soldiers in 1799 made the deciphering of hieroglyphics possible.

Rosolio
Rosolio is an
alcoholic beverage from southern Europe.

Rounders
Rounders is a game played by two teams, with a semicircular ''
home'' and three ''posts'' equidistant from each other and from the home. The object of the striker after hitting the ball is to run round the whole or part of the course. He is out if a fielder catches the ball or if he is struck by the ball when running between the posts. The American game of baseball derived from rounders.

Royal Standard
The
Royal Standard is a flag bearing the royal national arms, flown only by the Sovereign.

Rubber
Rubber is coagulated latex.

Rubefacient
A rubefacient is a
counter-irritant which causes heat and redness - such as hot water for example.

Rugby Football
Rugby Football started at Rugby school and was established all over Britain by 1870. Originally there was no limit to the number of players on each side, in 1877 the rule of 15 a side was adopted, and the practice of deliberate hacking was abolished.

Rum
Rum is an
alcoholic beverage distilled from sugar cane.

Russians
see "
russian"

Russophobe
A russophobe is a person who hates or fears
Russians.

Russophobia
Russophobia is the fear or hatred of
Russians.

Rust
Rust is an
iron oxide.

Ruthenium
Ruthenium is a
metal element with the symbol Ru.

Rutherfordium
Rutherfordium is an artificial
radioactive element with the symbol Rf and with a very short lifespan.

Ryder Cup
The Ryder Cup is an international
golf tournament.