20-letter words containing r, i, d, o
- floodlight projector — a powerful lamp having a reflector curved to produce a floodlight.
- fondue bourguignonne — a dish consisting of pieces of steak impaled on forks, cooked in oil at the table and dipped in sauces
- for sb's delectation — If you do something for someone's delectation, you do it to give them enjoyment or pleasure.
- forbidden transition — an electronic transition in an atom, molecule, etc, that is not permitted by electric dipole selection rules
- force-field analysis — a decision-making technique, often presented graphically, that identifies all the positive and negative forces impinging on a problem
- fore-and-aft topsail — gaff topsail (def 1).
- frederick barbarossa — ("Frederick Barbarossa") 1123?–90, king of Germany 1152–90; king of Italy 1152–90: emperor of the Holy Roman Empire 1152–90.
- frequency modulation — FM.
- fridtjof nansen land — Franz Josef Land.
- friends of the earth — an organization of environmentalists and conservationists whose aim is to promote the sustainable use of the earth's resources
- front-end volatility — Front-end volatility is the ability of the fractions with lower boiling points, such as butane, to evaporate at normal temperatures.
- garcilaso de la vega — 1503?–36, Spanish poet.
- gastroduodenostomies — Plural form of gastroduodenostomy.
- get under one's skin — the external covering or integument of an animal body, especially when soft and flexible.
- get/give so the bird — If an audience gives someone the bird, they shout loudly in order to show their disappointment or disapproval.
- gill-over-the-ground — ground ivy.
- give a wide berth to — to keep clear of; avoid
- godefroy de bouillon — c1060–1100, French crusader.
- good driver discount — A good driver discount is a discount on insurance that is available to drivers who have no at-fault accidents and no traffic offenses during a particular period.
- good neighbor policy — a diplomatic policy of the U.S., first presented in 1933 by President Franklin Roosevelt, for the encouragement of friendly relations and mutual defense among the nations of the Western Hemisphere.
- grand unified theory — a possible future quantum field theory that would encompass both the electroweak theory and quantum chromodynamics. Abbreviation: GUT.
- gravitational radius — Schwarzschild radius.
- great northern diver — a large northern bird, Gavia immer, with a black-and-white chequered back and a black head and neck in summer: family Gaviidae (divers)
- green monkey disease — Marburg disease.
- grievous bodily harm — law: serious injury
- grolier de servieres — Jean [zhahn] /ʒɑ̃/ (Show IPA), 1479–1565, French bibliophile.
- group code recording — (storage) (GCR) A recording method used for 6250 BPI magnetic tapes. GCR typically uses a group of five bits of code to represent four bits of data. The encoding ensures no more than two or three zeros occur in a row, and no more than eight or so ones occur in a row, where zeros represent an absense of magnetic change. GCR is also used on Commodore Business Machines diskette drives; the 4040, 8050, 154x, 157x and 158x series of 5.25" and 3.5" low and high density diskette drives used with 8-bit home computers circa 1977 to 1992. It was also supported on Amiga internal and external drives but only used for reading non-Amiga disks. Compare NRZI, PE.
- happy hunting ground — the North American Indian heaven, conceived of as a paradise of hunting and feasting for warriors and hunters.
- herringbone bridging — Carpentry. cross bridging.
- heston and isleworth — a former borough, now part of Hounslow, in SE England, near London.
- heteropolysaccharide — (carbohydrate) any polysaccharide formed from two or more different kinds of monosaccharide.
- hickory horned devil — regal moth
- hildegard von bingen — Hildegard von (Hildegard of Bingen"Sibyl of the Rhine") 1098–1178, German nun, healer, writer, and composer.
- holder in due course — a person who has received a negotiable instrument in good faith and without notice that it is overdue, that there is any prior claim, or that there is a defect in the title of the person who negotiated it.
- horizontal microcode — (processor) Microcode using horizontal encoding.
- horizontally opposed — A horizontally opposed engine has the cylinders set horizontally at either side of the crankshaft.
- hospitality industry — the hotel and accommodation industry
- hurricane-force wind — a wind, not necessarily a hurricane, having a speed of more than 72 miles per hour (32 m/sec): the strongest of the winds.
- hydraulic suspension — a system of motor-vehicle suspension using hydraulic members, often with hydraulic compensation between front and rear systems (hydroelastic suspension)
- hydrodesulfurization — desulfurization by catalytic agents of the sulfur-rich hydrocarbons obtained from petroleum or the like during cracking or hydrocracking.
- hydrostatic pressure — Hydrostatic pressure is the pressure exerted by a liquid that depends on how deep it is.
- hyperadrenocorticism — Cushing's syndrome.
- hypodermic injection — the injection of a medicine or drug under the skin
- hypophosphorous acid — a colorless or yellowish, water-soluble, liquid, monobasic acid, H 3 PO 2 , having a sour odor, and used as a reducing agent.
- ideal of pure reason — God, seen as an idea of pure reason unifying the personal soul with the cosmos.
- imported currantworm — the larva of any of several insects, as a sawfly, Nematus ribesii (imported currantworm) which infests and feeds on the leaves and fruit of currants.
- in flagrante delicto — Law. in the very act of committing the offense.
- in trim/in good trim — When people are in trim or in good trim, they are in good physical condition.
- in-service education — training and education given to employed teachers throughout their career
- incorporated company — a legally constituted company