12-letter words containing o, a, s
- amniotic sac — membrane around embryo or foetus
- among others — used to indicate that there are several more people like the one or ones mentioned, but that you do not intend to mention them all
- amortisation — Alternative spelling of amortization.
- amourousness — Rare spelling of amorousness.
- amphibiously — In the manner of an amphibian.
- amphicarpous — producing two kinds of fruit that differ either in form or in time of ripening.
- amphicoelous — (of the vertebrae of most fishes and some amphibians) concave at the anterior and posterior ends
- amphistomous — (of certain animals, such as leeches) having a sucker at either end of the body
- amphitropous — (of a plant ovule) partially inverted so that the base and the micropyle at the apex are the same distance from the funicle
- ampullaceous — shaped like an ampulla or a bladder
- amuse-bouche — an appetizer before a meal
- an iron fist — a cruel and unyielding attitude or approach
- anachronisms — Plural form of anachronism.
- anachronists — Plural form of anachronist.
- anacrogynous — having the female sex organs arising from any cell below the apex of the stem, thereby not terminating its growth, as certain liverworts.
- anaerobiosis — life in the absence of oxygen
- analogy test — a reasoning test in which the subject is required to supply the missing term in a relationship of the form “A is to B as Y is to ^^^.”.
- analyzations — Plural form of analyzation.
- anamorphoses — Plural form of anamorphosis.
- anamorphosis — an image or drawing distorted in such a way that it becomes recognizable only when viewed in a specified manner or through a special device
- anaphrodisia — diminished sexual desire.
- anaplasmosis — a disease of cattle caused by a blood-infecting protozoan parasite, Anaplasma marginale, transmitted by bloodsucking flies and ticks.
- anapophysial — of or relating to an anapophysis.
- anastomosing — Present participle of anastomose.
- anchorperson — the primary reporter on a news television broadcast
- and so forth — and so on; and other such things; et cetera
- androgenesis — a type of reproduction in insects and plants involving the development of an embryo that contains only paternal chromosomes
- androscoggin — a river flowing from NE New Hampshire through SW Maine into the Kennebec River. 171 miles (275 km) long.
- androsterone — an androgenic steroid hormone produced in the testes. Formula: C19H30O2
- 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.