18-letter words containing a, v, o, c
- conversation chair — an English chair of the 18th century designed to be straddled facing the back of the chair with the elbows resting on the crest rail: an English imitation of the voyeuse.
- conversation class — a class in which one learns to speak a foreign language
- conversation piece — something, esp an unusual object, that provokes conversation
- conversationalists — Plural form of conversationalist.
- cumulative scoring — a method of scoring in which the score of a partnership is taken as the sum of their scores on all hands played.
- curvature of field — a monochromatic aberration of a lens or other optical system in which the focal surface is curved, the refracted image of an object oriented perpendicular to the axis of the lens lying on a curved surface rather than in a plane perpendicular to the axis.
- curvature of space — (in relativity) a property of space near massive bodies in which their gravitational field causes light to travel along curved paths.
- digital switchover — the process of changing the method of transmitting television from analogue to digital format
- digital video disc — Digital Versatile Disc
- diplomatic service — diplomatic corps
- domenico veneziano — died 1461, Italian painter, noted for the St Lucy Altarpiece
- double achievement — a representation of the arms of a husband beside those of his wife such that a difference of rank between them is shown.
- dragline excavator — a power shovel that operates by being dragged by cables at the end of an arm or jib: used for quarrying, opencast mining, etc
- driver's education — high-school driving classes
- each and every one — all
- electrovalent bond — a type of chemical bond in which one atom loses an electron to form a positive ion and the other atom gains the electron to form a negative ion. The resulting ions are held together by electrostatic attraction
- enantioselectivity — (chemistry) The selectivity of a reaction towards one of a pair of enantiomers.
- environment agency — an official agency providing information on environmental issues, esp rivers, flooding and pollution
- fischer von erlach — Johann Bernhard [yaw-hahn bern-hahrt] /ˈyɔ hɑn ˈbɛrn hɑrt/ (Show IPA), 1656–1723, Austrian architect.
- formal equivalence — the relation that holds between two open sentences when their universal closures are materially equivalent
- galvanic corrosion — Galvanic corrosion is a type of corrosion caused by bringing together two different metals, one of which corrodes more rapidly than it would alone while the other corrodes less rapidly.
- geneva conventions — one of a series of international agreements, first made in Geneva, Switzerland, in 1864, establishing rules for the humane treatment of prisoners of war and of the sick, the wounded, and the dead in battle.
- haemorrhagic fever — any of a group of fevers, such as Ebola virus disease and yellow fever, characterized by internal bleeding or bleeding into the skin
- have a screw loose — a metal fastener having a tapered shank with a helical thread, and topped with a slotted head, driven into wood or the like by rotating, especially by means of a screwdriver.
- have on one's back — to be burdened with
- heimlich manoeuvre — a technique in first aid to dislodge a foreign body in a person's windpipe by applying sudden upward pressure on the upper abdomen
- in inverted commas — If you say in inverted commas after a word or phrase, you are indicating that it is inaccurate or unacceptable in some way, or that you are quoting someone else.
- indecent behaviour — the offence of committing indecent acts
- inductive relation — A relation R between domains D and E is inductive if for all chains d1 .. dn in D and e1 .. en in E,
- indus civilization — an ancient civilization that flourished in the Indus River valley, from about 2500 to 1500 b.c.: extensive archaeological excavations at the main sites of Mohenjo-Daro and Harappa in Pakistan.
- inferior vena cava — See under vena cava.
- investment account — a bank account in which money is saved long-term to accrue interest
- investment company — a company that invests its funds in other companies and issues its own securities against these investments.
- involuntary muscle — muscle: contracts involuntarily
- italian provincial — designating or of a style of rural, Italian furniture of the 18th and 19th cent., with straight lines and simple decoration, usually of fruitwood or mahogany
- jacksonville beach — a city in NE Florida.
- logical positivism — a philosophical movement that stresses the function of philosophy as a method of criticizing and analyzing science and that rejects all transcendental metaphysics, statements of fact being held to be meaningful only if they have verifiable consequences in experience and in statements of logic, mathematics, or philosophy itself, and with such statements of fact deriving their validity from the rules of language.
- logical positivist — an exponent or follower of logical positivism
- macroinvertebrates — Plural form of macroinvertebrate.
- magnetic variation — variation (def 8).
- maksutov telescope — a reflecting telescope in which coma and spherical aberration are reduced to a minimum by a combination of a spherical mirror and a meniscus lens placed inside the radius of curvature of the mirror.
- maritime provinces — region in Canada
- merchant of venice — a comedy (1596?) by Shakespeare.
- mercury-vapor lamp — a lamp producing a light with a high actinic and ultraviolet content by means of an electric arc in mercury vapor.
- microenvironmental — Pertaining to a microenvironment.
- microgravitational — Of or pertaining to microgravitation.
- microinvertebrates — Plural form of microinvertebrate.
- microwave detector — a device for recording the speed of a motorist
- microwave spectrum — a spectrum of electromagnetic radiations whose wavelengths fall in the microwave range.
- mordovian republic — a constituent republic of W central Russia, in the middle Volga basin. Capital: Saransk. Pop: 888 700 (2002). Area: 26 200 sq km (10 110 sq miles)