13-letter words containing a, s, c, e, i
- octogenarians — Plural form of octogenarian.
- olympic games — international sports event
- open sandwich — a sandwich served on only one slice of bread, without a covering slice.
- optical mouse — (hardware) Any kind of mouse that uses visible light or infrared to detect changes in its position.
- orchestra pit — musicians' seating in front of stage
- orchestra-pit — a group of performers on various musical instruments, including especially stringed instruments of the viol class, clarinets and flutes, cornets and trombones, drums, and cymbals, for playing music, as symphonies, operas, popular music, or other compositions.
- orchestralist — a person who writes or arranges orchestral music
- orchestrating — Present participle of orchestrate.
- orchestration — (uncountable) the arrangement of music for performance by an orchestra.
- ordinal scale — a scale on which data is shown simply in order of magnitude since there is no standard of measurement of differences: for instance, a squash ladder is an ordinal scale since one can say only that one person is better than another, but not by how much
- organoarsenic — (organic chemistry) Describing any organic compound containing a carbon to arsenic bond.
- orsellic acid — an acid found in lichens
- orthosilicate — a silicate mineral
- ovariectomies — Plural form of ovariectomy.
- over-cautious — excessively or unnecessarily cautious: Sometimes it doesn't pay to be overcautious in business.
- overachievers — Plural form of overachiever.
- overinsurance — (of goods or property) insurance in excess of actual value
- oversocialize — to make social; make fit for life in companionship with others.
- packet switch — packet switching
- packing house — A packing house is a company that processes and packs food, especially meat, to be sold.
- palaeocrystic — consisting of former glacial formation
- paleo-asiatic — a member of any of various Mongoloid peoples of northeastern Asia.
- palisade cell — a columnar cell of palisade parenchyma.
- panic selling — widespread selling of a security or investment, causing sharp price declines. Usually caused by an unexpected event seen to devalue the security.
- para-centesis — puncture of the wall of a cavity to drain off fluid.
- paradise duck — a large duck, Casarca variegata, of New Zealand, having a brightly coloured plumage
- parallelistic — of, relating to, or of the nature of a parallelism.
- parasynthetic — the formation of a word by the addition of a derivational suffix to a phrase or compound, as of greathearted, which is great heart plus -ed.
- paring chisel — a woodworking chisel moved by steady hand pressure to make long, light cuts.
- paris commune — commune3 (def 8).
- pas de calais — a department of N France, in Nord-Pas-de-Calais region, on the Straits of Dover (the Pas de Calais): the part of France closest to the British Isles. Capital: Arras. Pop: 1 451 307 (2003 est). Area: 6752 sq km (2633 sq miles)
- pas-de-calais — French name of the Strait of Dover.
- passing place — a wider place on a narrow road where vehicles can pass
- passive voice — grammar: verb form takes when subject acted upon
- paternalistic — the system, principle, or practice of managing or governing individuals, businesses, nations, etc., in the manner of a father dealing benevolently and often intrusively with his children: The employees objected to the paternalism of the old president.
- paucis verbis — in or by few words; with brevity.
- peace studies — a field of political science which examines how to reduce conflicts
- peak district — a region of N central England, mainly in N Derbyshire at the S end of the Pennines: consists of moors in the north and a central limestone plateau; many caves. Highest point: 727 m (2088 ft)
- pedal cyclist — a person who rides a pedal cycle, as opposed to a motorcycle
- peirastically — in a peirastic manner
- pelican state — Louisiana (used as a nickname).
- penicillinase — any of a group of enzymes used to treat allergic reactions to penicillin
- pentastichous — (of plant leaves) arranged in five vertical rows
- pentasyllabic — a word or line of verse of five syllables.
- pentatonicism — the use of a five-tone scale.
- periodicalist — a writer of articles for periodicals
- perissodactyl — having an uneven number of toes or digits on each foot.
- perscrutation — a very careful exploration or inspection
- persian lilac — an Asian lilac, Syringa persica, having pale reddish-purple flowers.
- personalistic — Also called personal idealism. a modern philosophical movement locating ultimate value and reality in persons, human or divine.