18-letter words containing c, r, o, u
- fitness instructor — physical trainer, exercise teacher
- fixed-focus camera — a camera with an unadjustable focal length and with a relatively large depth of field.
- fluorescent screen — a transparent screen coated on one side with a phosphor that fluoresces when exposed to X-rays or cathode rays
- fluorodeoxyglucose — (carbohydrate) A fluorine analog of glucose that is used in positron emission tomography.
- formal equivalence — the relation that holds between two open sentences when their universal closures are materially equivalent
- four-color problem — the problem, solved in 1976, of proving the theorem that any geographic map can be colored using only four colors so that no connected countries with a common boundary are colored the same color.
- 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.
- frederick douglass — Frederick, 1817–95, U.S. ex-slave, abolitionist, and orator.
- frequency function — probability density function (def 2).
- frequency response — the effectiveness with which a circuit, device, or system processes and transmits signals fed into it, as a function of the signal frequency.
- functional program — (language) A program employing the functional programming approach or written in a functional language.
- funeral procession — ceremonial cortège at a burial
- geodetic surveying — the surveying of the earth's surface, making allowance for its curvature and giving an accurate framework for smaller-scale surveys
- give someone curry — to assault (a person) verbally or physically
- governor's council — a council chosen to assist or inform a governor on legislative or executive matters.
- 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
- 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
- helicopter gunship — military attack helicopter
- horses for courses — a policy, course of action, etc modified slightly to take account of specific circumstances without departing in essentials from the original
- hydrofluorocarbons — Plural form of hydrofluorocarbon.
- hydroxychloroquine — a colorless crystalline solid, C 18 H 26 ClN 3 O, used in the treatment of malaria, lupus erythematosus, and rheumatoid arthritis.
- hyposulfurous acid — an acid, H 2 S 2 O 4 , next in a series below sulfurous acid, known only in solution or in the form of its salts.
- immunofluorescence — any of various techniques for detecting an antigen or antibody in a sample by coupling its specifically interactive antibody or antigen to a fluorescent compound, mixing with the sample, and observing the reaction under an ultraviolet-light microscope.
- 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.
- indecent behaviour — the offence of committing indecent acts
- indirect discourse — discourse consisting not of an exact quotation of a speaker's words but of a version transformed from them for grammatical inclusion in a larger sentence. He said he was hungry is an example of indirect discourse.
- 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 ceremony — a ceremony held to mark a person's formal introduction or entry into an office, position, group, etc
- 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,
- instruction manual — how-to, usage guide
- intercartilaginous — (anatomy) Within cartilage.
- intercommunication — to communicate mutually, as people.
- involuntary muscle — muscle: contracts involuntarily
- isthmus of corinth — a narrow strip of land between the Gulf of Corinth and the Saronic Gulf: crossed by the Corinth Canal making navigation possible between the gulfs
- junior common room — (in certain universities and colleges) a common room for the use of students
- junior high school — a school attended after elementary school and usually consisting of grades seven through nine.
- krause's corpuscle — any of numerous encapsulated nerve endings occurring in the skin and mucous membranes, functioning as sensory cold receptors.
- laugh out of court — to express mirth, pleasure, derision, or nervousness with an audible, vocal expulsion of air from the lungs that can range from a loud burst of sound to a series of quiet chuckles and is usually accompanied by characteristic facial and bodily movements.
- launching ceremony — a ceremony that celebrates the launch of a ship for the first time into the water
- lenticular process — a method for producing images with a three-dimensional effect by photographing on lenticulated film.
- liqueur chocolates — chocolates containing liqueur
- lonely hearts club — a club for people who are trying to find a lover or a friend
- long-hours culture — The long-hours culture is the way in which some workers feel that they are expected to work much longer hours than they are paid to do.