12-letter words containing n, o, s, a, c
- halcyon days — period regarded with nostalgia
- half section — a part that is cut off or separated.
- half-section — a part that is cut off or separated.
- hallucinosis — a mental state characterized by repeated hallucinations.
- hansom (cab) — a 19th-cent. two-wheeled covered carriage for two passengers, pulled by one horse: the driver's seat is above and behind the cab
- hells canyon — a canyon on the Snake River in S Idaho and along the Oregon border: 125 miles (210 km) long with a maximum depth of about 7900 feet (2408 meters).
- hemodynamics — the branch of physiology dealing with the forces involved in the circulation of the blood.
- hexacosanoic — as in hexacosanoic acid
- histrionical — (British) Alternative form of histrionic.
- hoisin sauce — a thick, sweet, spicy condiment containing soybeans, sugar, garlic, and chili peppers, used in cooking or as an accompaniment to meat, fish, or poultry, especially Peking duck.
- horse racing — a contest of speed among horses that either are ridden by jockeys or pull sulkies and their drivers.
- housecleaner — Someone employed to clean a house.
- hydrocarbons — any of a class of compounds containing only hydrogen and carbon, as an alkane, methane, CH 4 , an alkene, ethylene, C 2 H 4 , an alkyne, acetylene, C 2 H 2 , or an aromatic compound, benzene, C 6 H 6 .
- hydronautics — (nautical) The science of the design and construction of ships, their engines, and their instrumentation.
- hypersomniac — a tendency to sleep excessively.
- iceland moss — an edible lichen, Cetraria islandica, of arctic regions, containing a starchlike substance used in medicine.
- iconoclastic — attacking or ignoring cherished beliefs and long-held traditions, etc., as being based on error, superstition, or lack of creativity: an iconoclastic architect whose buildings are like monumental sculptures.
- iconomachist — a person who campaigns against the use of icons in religious worship
- icosahedrons — Plural form of icosahedron.
- idiodynamics — a system of beliefs in psychology emphasizing the role of the personality in choosing stimuli and in organizing responses.
- idiosyncracy — Alternative spelling of idiosyncrasy.
- idiosyncrasy — A mode of behavior or way of thought peculiar to an individual.
- implications — something implied or suggested as naturally to be inferred or understood: to resent an implication of dishonesty.
- importancies — Plural form of importancy.
- imprecations — Plural form of imprecation.
- in search of — looking for, seeking
- inauspicious — not auspicious; boding ill; ill-omened; unfavorable.
- incantations — Plural form of incantation.
- incarnations — Plural form of incarnation.
- incautiously — In an incautious manner; with a lack of caution.
- inchoateness — The quality of being inchoate.
- incinerators — Plural form of incinerator.
- inclinations — A person's natural tendency or urge to act or feel in a particular way; a disposition or propensity.
- inclusionary — (of zoning, housing programs, etc.) stipulating that a certain percentage of new housing will be priced within the reach of middle-income buyers or renters.
- incognisance — Alternative spelling of incognizance.
- incompassing — Present participle of incompass.
- incompassion — (obsolete) Lack of compassion.
- inconsolable — not able to be comforted or consoled; disconsolate: She was inconsolable when her son died.
- inconsolably — not able to be comforted or consoled; disconsolate: She was inconsolable when her son died.
- inconsonance — Lack of consonance or harmony; disagreement.
- inconstantly — In an inconstant manner.
- inconsumable — not consumable; incapable of being consumed.
- inconversant — Not conversant or acquainted (with something); unfamiliar.
- incorporates — Third-person singular simple present indicative form of incorporate.
- incrassation — The process of thickening.
- incrustation — an incrusting or being incrusted.
- infographics — Plural form of infographic.
- infomercials — Plural form of infomercial.
- inobservance — lack of attention; inattention; heedlessness: drowsy inobservance.
- inoculations — the act or process of inoculating.