12-letter words containing o, s, n, a
- anecdotalism — an inclination to relate anecdotes
- anemochorous — (of a fruit, seed, or spore) adapted for dispersion by wind.
- anemone fish — any of various damselfishes of the genus Amphiprion, such as A. percula (clown anemone fish), that usually live closely associated with sea anemones
- anemophilous — (of flowering plants such as grasses) pollinated by the wind
- anemotropism — orientation in response to a current of air.
- angelologist — a person who studies angelology
- angiocarpous — being or having fruit contained in a vessel such as a shell
- angiogenesis — the induction of blood-vessel growth, often in association with a particular organ or tissue, or with a tumour
- angiopathies — Plural form of angiopathy.
- angiosarcoma — a rare, malignant tumour which grows rapidly in the blood vessels
- angiostomous — having a narrow opening
- angiotensins — Plural form of angiotensin.
- animalculous — a minute or microscopic animal, nearly or quite invisible to the naked eye, as an infusorian or rotifer.
- animatronics — a branch of film and theatre technology that combines traditional puppetry techniques with electronics to create lifelike animated effects
- anisocytosis — (medicine) Significant size variation of blood cells.
- anisomorphic — differing in the semantic scope of terms referring to the real world: for instance, English and Russian are anisomorphic with regard to colour terms, English treating light blue and navy blue as shades of one colour but Russian treating these two shades as unrelated
- anisothermal — (thermodynamics) Of or pertaining to a system that is not in thermal equilibrium, that does not have a single fixed temperature.
- anisotropies — Plural form of anisotropy.
- anisotropism — the state of being anisotropic
- ankylosaurus — a plant-eating dinosaur of the Cretaceous period that had a tail resembling a club and a body covering of thick scales
- annoyingness — causing annoyance; irritatingly bothersome: annoying delays.
- annunciators — Plural form of annunciator.
- anorthoclase — a variety of microcline, rich in sodium and sometimes having a play of color: sometimes considered a variety of orthoclase.
- anorthositic — resembling or consisting of anorthosite
- anotherguess — of a different type or kind; different
- ansate cross — ankh
- antagonising — Present participle of antagonise.
- antagonistic — If a person is antagonistic to someone or something, they show hatred or dislike towards them.
- anteposition — the position opposite a given part of a plant
- anteriorness — The state or quality of being anterior.
- anthocarpous — resembling or pertaining to an anthocarp
- anthocyanins — Plural form of anthocyanin.
- anthologised — Simple past tense and past participle of anthologise.
- anthologiser — Alternative spelling of anthologizer.
- anthologizes — Third-person singular simple present indicative form of anthologize.
- anthophagous — That feeds on flowers.
- anthophilous — (esp of insects) frequenting flowers
- anti-smoking — opposed to or promoting the discontinuance of the smoking of tobacco: an antismoking campaign launched by a health agency.
- anti-strophe — the part of an ancient Greek choral ode answering a previous strophe, sung by the chorus when returning from left to right.
- anti-zionist — a person who is opposed to Zionism
- anticathodes — Plural form of anticathode.
- antichthones — the antipodes
- anticonsumer — opposed to consumerism
- anticyclones — Plural form of anticyclone.
- antiestrogen — any of several major female sex hormones produced primarily by the ovarian follicles of female mammals, capable of inducing estrus, developing and maintaining secondary female sex characteristics, and preparing the uterus for the reception of a fertilized egg: used, especially in synthetic form, as a component of oral contraceptives, in certain cancer treatments, and in other therapies.
- antigonus ii — (Gonatus) c319–239 b.c, king of Macedonia 283–239 (son of Demetrius I).
- antigropelos — waterproof leggings used to protect against mud
- antimosquito — acting against mosquitoes
- antinepotism — opposed to or acting against nepotism
- antineutrons — Plural form of antineutron.