16-letter words containing a, r, e, p, s
- keep under wraps — not reveal
- key note speaker — a person who delivers a keynote address.
- khakass republic — a constituent republic of S central Russia, formerly in Krasnoyarsk Territory: formed in 1930. Capital: Abakan. Pop: 546 100 (2002). Area: 61 900 sq km (23 855 sq miles)
- kleptoparasitism — The parasitic theft of captured prey, nest material, etc. from animals of the same or another species.
- knapsack problem — the problem of determining which numbers from a given collection of numbers have been added together to yield a specific sum: used in cryptography to encipher (and sometimes decipher) messages.
- ladies'-eardrops — lady's-earrings.
- lady of pleasure — a prostitute.
- laserdisc player — a device that plays laserdiscs
- laurentides park — a national park in SE Canada, in Quebec province between the St. Lawrence and Lake St. John.
- learner's permit — A learner's permit is a license that allows you to drive a vehicle before you have passed your driving test.
- learning process — a process of learning
- left parenthesis — (character) "(". ASCII character 40. Common names: left paren; left parenthesis; left; open; paren (")" = thesis); open paren; open parenthesis; left parenthesis; left banana. Rare: so (")" = already); lparen; ITU-T: opening parenthesis; open round bracket, left round bracket, INTERCAL: wax (")" = wane); parenthisey (")" = unparenthisey); left ear. Paired with right parenthesis (")").
- legal separation — judicial separation.
- leptosporangiate — (of ferns) having each sporangium developing from a single cell, rather than from a group, and normally with specialized explosive spore dispersal
- lesser spearwort — a Eurasian ranunculaceous plant, R. flammula, of the genus Ranunculus, which grows in wet places and has long narrow leaves and yellow flowers
- levallois-perret — a suburb of Paris, in N France, on the Seine.
- lever escapement — an escapement in which a pivoted lever, made to oscillate by the escape wheel, engages a balance staff and causes it to oscillate.
- library pictures — a caption used to alert viewers that footage being broadcast is from an earlier time and is not happening now
- lizard peninsula — a promontory in SW England, in SW Cornwall: the southernmost point in Great Britain
- lost-wax process — a process of investment casting in which a refractory mold is built up around a pattern of wax and then baked so as to melt and drain off the wax.
- mach's principle — the proposition that there is no absolute space and that the inertia and acceleration of a body are determined by all of the matter of the universe.
- macpherson strut — an automobile suspension-system component that consists of a strut combined with a spring and shock absorber and connects the wheel to the frame of the vehicle.
- magnetic pyrites — Mineralogy. pyrrhotite.
- magnetoreceptors — Plural form of magnetoreceptor.
- malpractice suit — a lawsuit brought against a professional accused of illegal or unethical practices or neglect of duty
- man and superman — a comedy (1903) by G. B. Shaw.
- mangrove snapper — gray snapper.
- manic depression — bipolar disorder.
- manic-depressive — suffering from bipolar disorder.
- maremma sheepdog — a large strongly-built sheepdog of a breed with a long, slightly wavy, white coat
- marseille prolog — (language) One of the two main dialects of Prolog, the other being Edinburgh Prolog. The difference is largely syntax. The original Marseille Interpreter (1973) was written in Fortran.
- matthew of paris — c1200–59, English chronicler.
- mechanoreceptors — Plural form of mechanoreceptor.
- megacorporations — Plural form of megacorporation.
- megasporogenesis — the formation and development of megaspores.
- menippean satire — a form of satire that is indirect and nonrealistic in approach and that consists typically of a loosely organized narrative incorporating a series of dialogues between representatives of various points of view
- menstrual cramps — pain in the lower abdomen as well as possibly in the lower back and legs associated with menstruation
- menstrual period — the bleeding from the womb that occurs approximately monthly in nonpregnant women of reproductive age
- metamorphosising — Present participle of metamorphosise.
- microencapsulate — (transitive) To embed by means of microencapsulation.
- mineral deposits — amounts of minerals that occur naturally in particular areas
- misapprehensions — Plural form of misapprehension.
- multiple factors — polygene.
- nephrocalcinosis — (medicine) The deposition of calcium salts in the renal parenchyma due to hyperparathyroidism.
- neurohypophyseal — Relating to the neurohypophysis.
- neurohypophysial — Relating to the neurohypophysis.
- neuropathologies — the pathology of the nervous system.
- neuropathologist — A specialist who practices neuropathology.
- neuropsychiatric — Of or pertaining to neuropsychiatry; simultaneously neurological and psychiatric.
- newspaper office — an office where the editorial and production staff of a newspaper work