18-letter words containing a, n, o, u, c
- distance education — education in which students receive instruction over the Internet, from a video, etc., instead of going to school.
- distribution class — form class
- dominican republic — a republic in the West Indies, occupying the E part of the island of Hispaniola. 19,129 sq. mi. (49,545 sq. km). Capital: Santo Domingo.
- 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.
- dramatic monologue — a poetic form in which a single character, addressing a silent auditor at a critical moment, reveals himself or herself and the dramatic situation.
- driver's education — high-school driving classes
- dysfunctionalities — Plural form of dysfunctionality.
- ecumenical council — a solemn assembly in the Roman Catholic Church, convoked and presided over by the pope and composed of cardinals, bishops, and certain other prelates whose decrees, when confirmed by the pope, become binding.
- electroacupuncture — the insertion into the body of one or more needles through which an electric current is passed
- electrostatic unit — any unit that belongs to a system of electrical cgs units in which the electric constant is given the value of unity and is taken as a pure number
- equinoctial circle — celestial equator
- equinoctial spring — either of the two highest spring tides that occur at the equinoxes
- ethnomusicological — Relating to or pertaining to ethnomusicology.
- european community — an economic and political association of European States that came into being in 1967, when the legislative and executive bodies of the European Economic Community merged with those of the European Coal and Steel Community and the European Atomic Energy Community: subsumed into the European Union in 1993
- executable content — (operating system) Executable programs sent by one computer to another via a network. For example a Java applet is executable content. Usage: rare.
- eyewitness account — a description given by someone who was present at an event
- fettuccine alfredo — fettuccine in cream sauce with grated Parmesan cheese.
- fibonacci sequence — (mathematics) The infinite sequence of numbers beginning 1, 1, 2, 3, 5, 8, 13, ... in which each term is the sum of the two terms preceding it. The ratio of successive Fibonacci terms tends to the golden ratio, namely (1 + sqrt 5)/2.
- fibrocartilaginous — a type of cartilage having a large number of fibers.
- formal equivalence — the relation that holds between two open sentences when their universal closures are materially equivalent
- fourth commandment — “Remember the sabbath day, to keep it holy”: fourth of the Ten Commandments.
- fracture toughness — The fracture toughness of a material is how likely it is to resist fracture.
- functional disease — a disease in which there is an abnormal change in the function of an organ, but no structural alteration in the tissues involved (opposed to organic disease).
- functional program — (language) A program employing the functional programming approach or written in a functional language.
- functional testing — (testing) (Or "black-box testing", "closed-box testing") The application of test data derived from functional requirements without regard to how the system is implemented.
- funeral procession — ceremonial cortège at a burial
- galactic longitude — the angular distance in degrees measured eastward in the galactic plane from a radius drawn from the earth as center to the constellation Sagittarius.
- good conduct medal — a medal awarded an enlisted person for meritorious behavior during the period of service.
- goya (y lucientes) — Fran‧ˈcis‧co Jo‧ˈsé‧ de (fʀɑnˈθiskɔhɔˈsɛ ðɛ) ; fränt hēsˈk^ōh^ōseˈ the) 1746-1828; Sp. painter
- grand council fire — a formal gathering of camp fire members requiring a minimum attendance of three troops.
- guidance counselor — advisor in schools
- gulf of california — an arm of the Pacific Ocean, between Sonora and Lower California
- haulage contractor — a person or firm that transports goods by lorry
- heat of combustion — the heat evolved when one mole of a substance is burnt in oxygen at constant volume
- hebdomadal council — the governing council or senate of Oxford University
- 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
- honeysuckle family — the plant family Caprifoliaceae, typified by shrubs and woody vines having opposite leaves, clusters of usually flaring, narrow, tubular flowers, and various types of fruit, and including the elder, honeysuckle, snowberry, twinflower, and viburnum.
- hydrofluorocarbons — Plural form of hydrofluorocarbon.
- immunohistological — the microscopic study of tissues with the aid of antibodies that bind to tissue components and reveal their presence.
- immunopharmacology — the branch of pharmacology concerned with the immune system
- in terrorem clause — a clause in a will stating that a beneficiary who contests the will shall lose his or her legacy.
- incommensurability — not commensurable; having no common basis, measure, or standard of comparison.
- inconsequentiality — of little or no importance; insignificant; trivial.
- indecent behaviour — the offence of committing indecent acts
- indolebutyric acid — a white or yellowish, crystalline, water-insoluble powder, C 12 H 13 O 2 N, a plant hormone similar to indoleacetic acid and used for the same purposes.
- induction training — training intended to enable new staff and recruits to do their work
- 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.
- infectious disease — illness spread by person to person
- instruction manual — how-to, usage guide