10-letter words containing a, p, o, r
- kiloampère — one thousand amperes
- kiloparsec — a unit of distance, equal to 1000 parsecs. Abbreviation: kpc.
- kleptocrat — a government official who is a thief or exploiter.
- kryptonate — (inorganic chemistry) To infuse a solid with krypton gas (especially with radioactive krypton-85).
- kuropatkin — Aleksei Nikolaevich [uh-lyi-ksyey nyi-kuh-lah-yi-vyich] /ʌ lyɪˈksyeɪ nyɪ kʌˈlɑ yɪ vyɪtʃ/ (Show IPA), 1848–1925, Russian general.
- kymographs — Plural form of kymograph.
- kymography — The use of a kymograph.
- la perouse — Jean François de Galaup [zhahn frahn-swa duh ga-loh] /ʒɑ̃ frɑ̃ˈswa də gaˈloʊ/ (Show IPA), 1741–88, French naval officer and explorer.
- labor camp — Also called slave labor camp. a penal colony where inmates are forced to work.
- laeotropic — oriented or coiled in a leftward direction, as a left-spiraling snail shell.
- lagerphone — (Australia) A generally homemade percussion instrument consisting of crown cap beer bottle tops loosely nailed to a pole (often a broom handle) and a board mounted cross-ways on the pole (the head of the broom), and played by striking the pole on the ground or with a stick, by drawing the serrated stick across the pole, or by shaking the instrument. (From 1952.).
- lagomorphs — Plural form of lagomorph.
- lampholder — a fixture for an electric light bulb
- lampoonery — a sharp, often virulent satire directed against an individual or institution; a work of literature, art, or the like, ridiculing severely the character or behavior of a person, society, etc.
- land power — a nation having an important and powerful army.
- landlouper — A vagabond; a vagrant.
- laparocele — (medicine) A rupture or hernia in the lumbar regions.
- laparotome — a cutting instrument for performing a laparotomy.
- laparotomy — incision through the abdominal wall.
- laserscope — a surgical instrument that employs a laser beam to destroy diseased tissue or to create small channels; used to open clogged arteries and, in ophthalmology, to treat patients with glaucoma or diabetic retinopathy.
- lay person — a person who is not a member of the clergy; one of the laity.
- leafhopper — any of numerous leaping, homopterous insects of the family Cicadellidae that suck plant juices, many being serious crop pests.
- leopardess — a female leopard.
- leptospira — any of several spirally shaped, aerobic bacteria of the genus Leptospira, certain species of which are pathogenic for human beings.
- lipography — unintentional omission in writing, as of a specific letter or syllable.
- lithograph — a print produced by lithography.
- liver opal — a form of opal having a reddish-brown coloration
- logansport — a city in N Indiana, on the Wabash River.
- logographs — Plural form of logograph.
- logography — printing with logotypes.
- look sharp — to turn one's eyes toward something or in some direction in order to see: He looked toward the western horizon and saw the returning planes.
- loperamide — a substance, C 29 H 33 ClN 2 O 2 , used in the treatment of diarrhea.
- loup-garou — a werewolf; lycanthrope.
- loves park — a town in N Illinois.
- lymphogram — A diagnostic image produced by lymphography.
- macpherson — James, 1736–96, Scottish author and translator.
- macrocarpa — (NZ) The Monterey cypress.
- macrograph — a representation of an object that is of the same size as or larger than the object.
- macrophage — a large white blood cell, occurring principally in connective tissue and in the bloodstream, that ingests foreign particles and infectious microorganisms by phagocytosis.
- macrophyte — a plant, especially a marine plant, large enough to be visible to the naked eye.
- macropores — Plural form of macropore.
- macroprism — a prism belonging to an orthorhombic crystal found between the macropinacoid and the unit prism
- macroscope — A wide-field imaging device.
- macrospore — megaspore.
- madrepores — Plural form of madrepore.
- madreporic — Resembling, or pertaining to, the genus Madrepora.
- mailperson — A mailman or mailwoman.
- mainpernor — a person who gives a guarantee that a prisoner will appear in court
- malapropos — inappropriate; out of place; inopportune; untimely: a malapropos remark.
- mammograph — A machine for taking X-ray pictures of the breasts (mammaries).