11-letter words containing o, p, a
- apron stage — a stage that projects into the auditorium so that the audience sit on three sides of it
- arabidopsis — Any cress (or related plant) of the genus Arabidopsis.
- araneomorph — (zoology) Any of the Araneomorphae, a suborder of spiders whose fangs cross with a pinching action.
- archbishops — Plural form of archbishop.
- archipelago — An archipelago is a group of islands, especially small islands.
- arctophilia — the practice of collecting teddy bears
- areographic — relating to areography
- armor plate — a protective covering of specially hardened steel plates, as on a tank
- arolla pine — a five-needled pine tree, Pinus cembra, found esp in mountain regions of Central Europe and yielding edible seeds
- ars poetica — the art of poetry
- arsonphobia — Pyrophobia.
- arte povera — a style of minimal art originating in Italy in the late 1960s, making use of cheap and commonly available materials such as stones, newspapers etc
- arthropathy — a disease of a joint
- arthropodan — relating to arthropods
- arthroscope — a tubular instrument that is inserted into the capsule of a joint to examine the joint, extract tissue, etc
- arthroscopy — the use of an arthroscope to diagnose an injury to or disease of a joint or to perform minor surgery on a joint.
- arthrospore — a sporelike cell of ascomycetous fungi and some algae produced by a breaking of the hyphae
- artophorion — pyx (def 1a).
- ascriptions — Plural form of ascription.
- asperations — Plural form of asperation.
- aspergation — the action of sprinkling, suffusing or irrigating with water
- aspersorium — a basin containing holy water with which worshippers sprinkle themselves
- asphyxiator — to produce asphyxia in.
- aspirations — a strong desire, longing, or aim; ambition: intellectual aspirations.
- asportation — the removal or taking away of something
- assumptions — something taken for granted; a supposition: a correct assumption. Synonyms: presupposition; hypothesis, conjecture, guess, postulate, theory.
- asteropaeus — a Trojan ally slain by Achilles.
- astraphobia — a fear of thunder and lightning
- astrography — The art of describing or delineating the stars; a description or mapping of the heavens.
- astrophobia — A fear of stars and celestial space.
- astrophyton — The giant basket star, an early Mesozoic invertebrate.
- astrosphere — the part of the aster excluding the centrosome
- at a gallop — If you do something at a gallop, you do it very quickly.
- at gunpoint — If you are held at gunpoint, someone is threatening to shoot and kill you if you do not obey them.
- atelophobia — The fear of imperfection or not being good enough.
- atheophobia — Fear or hatred of atheism or atheists.
- atmosphered — having an intellectual or psychological climate or feeling
- atmospheres — Plural form of atmosphere.
- atmospheric — Atmospheric is used to describe something which relates to the Earth's atmosphere.
- atomic pile — nuclear reactor
- atriopeptin — any of several peptide hormones that are released by the atria of the heart in response to an abnormal increase in blood volume and that modulate blood pressure and the excretion of sodium, potassium, and water. Abbreviation: ANF.
- attophysics — the physics of structures and artefacts with dimensions in the attometre range or of devices, such as lasers, capable of producing pulses with a duration measured in attoseconds
- audiophiles — Plural form of audiophile.
- audiotypist — a typist trained to type from a dictating machine
- auditorship — the position or function of auditor
- auto-prompt — (language) A numerical control language from IBM for 3D milling.
- auto-repeat — a feature of computer keys whereby a character is generated repeatedly as long as the user holds down the key in question
- autocephaly — the state of being autocephalous.
- autographed — Simple past tense and past participle of autograph.
- autographic — of, for, or like an autograph or autographs