12-letter words containing o, n, s, i
- alpha leonis — Regulus1
- altercations — Plural form of altercation.
- alternations — Plural form of alternation.
- altitudinous — pertaining to altitude or height
- ambiposition — (linguistics) An adposition that can occur either before or after its complement.
- ambitionless — without ambition, unambitious
- amelogenesis — the production of enamel by ameloblasts
- amentiferous — bearing aments
- aminophenols — Plural form of aminophenol.
- amnioscopies — Plural form of amnioscopy.
- amniotic sac — membrane around embryo or foetus
- amortisation — Alternative spelling of amortization.
- an iron fist — a cruel and unyielding attitude or approach
- anachronisms — Plural form of anachronism.
- anachronists — Plural form of anachronist.
- anaerobiosis — life in the absence of oxygen
- analyzations — Plural form of analyzation.
- 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.
- 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.
- anecdotalism — an inclination to relate anecdotes
- 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
- annoyingness — causing annoyance; irritatingly bothersome: annoying delays.
- annunciators — Plural form of annunciator.
- anorthositic — resembling or consisting of anorthosite
- 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.
- anthocyanins — Plural form of anthocyanin.