7-letter words containing a, s, l, o
- oaklisp — (language) A portable object-oriented Scheme by K. Lang and Barak Perlmutter of Yale. Oaklisp uses a superset of Scheme syntax. It is based on generic operations rather than functions, and features anonymous classes, multiple inheritance, a strong error system, setters and locators for operations and a facility for dynamic binding. Version 1.2 includes an interface, bytecode compiler, run-time system and documentation.
- oastler — Richard. 1789–1861, British social reformer; he campaigned against child labour and helped achieve the ten-hour day (1847)
- obelias — Plural form of obelia.
- oblasti — (in Russia and the Soviet Union) an administrative division corresponding to an autonomous province.
- oblasts — Plural form of oblast.
- oblates — Plural form of oblate.
- oculars — Plural form of ocular.
- odalisk — a female slave or concubine in a harem, especially in that of the sultan of Turkey.
- oilcans — Plural form of oilcan.
- oilsand — Alternative spelling of oil sand.
- oleates — Plural form of oleate.
- olestra — a synthetic oil used as a substitute for dietary fat: not digested or absorbed by the human body.
- on sale — the act of selling.
- ooblast — a primordial cell from which the ovum is developed.
- ooplasm — The cytoplasm of an egg or ovum.
- opposal — (archaic) opposition.
- oracles — (especially in ancient Greece) an utterance, often ambiguous or obscure, given by a priest or priestess at a shrine as the response of a god to an inquiry.
- oralism — the theory, practice, or advocacy of education for the deaf chiefly or exclusively through lipreading, training in speech production, and training of residual hearing.
- oralist — an advocate of oralism.
- ordeals — Plural form of ordeal.
- orleans — Louis Philippe Joseph [lwee fee-leep zhaw-zef] /lwi fiˈlip ʒɔˈzɛf/ (Show IPA), Duc (Philippe Égalité) 1747–93, French political leader.
- osceola — 1804–38, U.S. Indian leader: chief of the Seminole tribe.
- oscheal — relating to or resembling the scrotum
- oscular — pertaining to an osculum.
- osmanli — an Ottoman.
- osmolal — relating to the concentration of a given solution
- osmolar — Of or pertaining to osmolarity.
- ostwald — Wilhelm [vil-helm] /ˈvɪl hɛlm/ (Show IPA), 1853–1932, German chemist: Nobel prize 1909.
- outlash — a sudden attack
- outlast — to endure or last longer than: The pyramids outlasted the civilization that built them.
- outlaws — Plural form of outlaw.
- outlays — Third-person singular simple present indicative form of outlay.
- outsail — to outdo in sailing; sail farther, more skillfully, or faster than.
- oxysalt — any salt of an oxyacid.
- palouse — a river in NW Idaho and SW Washington, flowing W and S to the Snake River. 140 miles (225 km) long.
- parasol — a lightweight umbrella used, especially by women, as a sunshade.
- parlous — perilous; dangerous.
- pelotas — a city in S Brazil.
- plasmo- — of, relating to, or resembling plasma
- plasmon — the sum total of plasmagenes in a cell
- polaris — a distinctive English argot in use since at least the 18th century among groups of theatrical and circus performers and in certain homosexual communities, derived largely from Italian, directly or through Lingua Franca.
- polatsk — a city in N Belarus, on the Dvina River.
- posable — to assume a particular attitude or stance, especially with the hope of impressing others: He likes to pose as an authority on literature.
- reposal — the act of reposing.
- rosalia — scarlet fever
- rosalie — a female given name: from a Latin word meaning rose festival.
- rosalyn — a feminine name: var. Rosalynn
- rosella — any of several large, colorful parakeets of the genus Platycercus, of Australia.
- roseola — a kind of rose-colored rash.
- rostral — of or relating to a rostrum.