17-letter words containing c, h, u, l
- modulo arithmetic — modular arithmetic
- monarch butterfly — a large, deep-orange butterfly, Danaus plexippus, having black and white markings, the larvae of which feed on the leaves of milkweed.
- muscle dysmorphia — a mental disorder primarily affecting males, characterized by obsessions about a perceived lack of muscularity, leading to compulsive exercising, use of anabolic steroids, etc. Compare body dysmorphic disorder.
- nathaniel currier — Nathaniel, 1813–88, U.S. lithographer. Compare Ives (def 4).
- natural harmonics — harmonics of a note produced on a stringed instrument by lightly touching an open or unstopped sounded string.
- natural hat trick — three goals scored in succession by one player in one game or one period.
- nautical twilight — the period of time during which the sun is 12° below the horizon
- neuropathological — (medicine) Of, pertaining to, or arising from neuropathology, the pathology of nerve tissue.
- neuropharmacology — the branch of pharmacology concerned with the effects of drugs on the nervous system.
- neuropsychologist — A neurologist or psychologist whose speciality is neuropsychology.
- nicholas bourbaki — the pseudonym of a group of mainly French mathematicians that, since 1939, has been producing a monumental work on advanced mathematics, Eléments de Mathématique
- nuclear chemistry — the branch of chemistry concerned with nuclear reactions
- nuclear threshold — the point in war at which a combatant brings nuclear weapons into use
- perpetual spinach — a variety of spinach that keeps producing edible leaves
- phonological rule — an operation in generative phonology that substitutes one sound or class of sounds for another in a phonological derivation.
- photoluminescence — luminescence induced by the absorption of infrared radiation, visible light, or ultraviolet radiation.
- physical pendulum — any apparatus consisting of a body of possibly irregular shape allowed to rotate freely about a horizontal axis on which it is pivoted (distinguished from simple pendulum).
- pincushion flower — scabious2 (def 1).
- ploughman's lunch — a light lunch consisting of bread and cheese, and sometimes pickled onions.
- polymorphonuclear — (of a leukocyte) having a lobulate nucleus.
- pseudepigraphical — certain writings (other than the canonical books and the Apocrypha) professing to be Biblical in character.
- pseudo-historical — of, pertaining to, treating, or characteristic of history or past events: historical records; historical research.
- psychoeducational — designating or of psychological methods, as intelligence tests, used in evaluating learning ability
- psycholinguistics — the study of the relationship between language and the cognitive or behavioral characteristics of those who use it.
- purple chokeberry — See under chokeberry (def 1).
- purple shore crab — any of numerous crabs that live along the shoreline between the tidemarks, as Hemigrapsus nudus (purple shore crab) of the Pacific coast of North America.
- push-pull circuit — a circuit using two similar electronic devices, such as matched valves, made to operate 180° out of phase with each other
- republic of china — People's Republic of, a country in E Asia. 3,691,502 sq. mi. (9,560,990 sq. km). Capital: Beijing.
- republic-of-china — People's Republic of, a country in E Asia. 3,691,502 sq. mi. (9,560,990 sq. km). Capital: Beijing.
- reticulate python — a python, Python reticulatus, of southeastern Asia and the East Indies, sometimes growing to a length of 32 feet (10 meters): usually considered to be the largest snake in the world.
- roll with a punch — to move in the same direction as a punch thrown at one so as to lessen its force
- run out the clock — to maintain control of the ball in the closing minutes of a game
- school counsellor — a counsellor who is based in a school
- school playground — school's outdoor recreation area
- scrophulariaceous — belonging to the Scrophulariaceae, the figwort family of plants.
- shirt-tail cousin — a distant cousin
- shuttle diplomacy — diplomatic negotiations carried out by a mediator who travels back and forth between the negotiating parties.
- socratic elenchus — the drawing out of the consequences of a position in order to show them to be contrary to some accepted position
- speech difficulty — a problem encountered in speaking
- spruce gall aphid — any of various homopterous insects of the family Adelgidae, as Adelges abietis (spruce gall aphid) and Pineus pinifoliae (pine leaf aphid) that feed and form galls on conifers.
- square the circle — a rectangle having all four sides of equal length.
- squaw huckleberry — deerberry.
- stannous chloride — a white, crystalline, water-soluble solid, SnCl 2 ⋅2H 2 O, used chiefly as a reducing and tinning agent, and as a mordant in dyeing with cochineal.
- stretch limousine — a limousine that has been lengthened to provide extra seating accommodation and more legroom
- sulfonyl chloride — a colorless liquid, SO 2 Cl 2 , having a very pungent odor and corrosive to the skin and mucous membranes: used as a chlorinating or sulfonating agent.
- technical support — an advising and troubleshooting service provided by a manufacturer, typically a software or hardware developer, to its customers, often online or on the telephone.
- the black country — the formerly heavily industrialized region of central England, northwest of Birmingham
- the cold shoulder — a show of indifference; slight
- the final curtain — the closing of the curtain at the end of the action of a play
- thermocoagulation — the coagulation of tissue by heat-producing high-frequency electric currents, used therapeutically to remove small growths or to create specific lesions in the brain.