12-letter words containing c, h, o, s, a
- half-section — a part that is cut off or separated.
- hall process — a process in which aluminum is refined by electrolytic reduction of alumina fused with cryolite.
- 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
- harpsichords — Plural form of harpsichord.
- hash cookies — biscuits containing cannabis
- helicographs — Plural form of helicograph.
- hellaciously — In a hellacious manner.
- 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).
- hematocolpos — (medicine) A medical condition in which the vagina fills with menstrual blood, often caused by the combination of menstruation with an imperforate hymen.
- hemerocallis — the genus comprising the day lilies.
- hemodynamics — the branch of physiology dealing with the forces involved in the circulation of the blood.
- hemophiliacs — Plural form of hemophiliac.
- heterosocial — relating to or denoting mixed-sex social relationships
- hexacosanoic — as in hexacosanoic acid
- hidrocystoma — An adenoma of the sweat glands.
- hierocracies — Plural form of hierocracy.
- histiocytoma — A tumour consisting of histiocytes.
- histographic — a treatise on or description of organic tissues.
- histological — the branch of biology dealing with the study of tissues.
- historically — of, pertaining to, treating, or characteristic of history or past events: historical records; historical research.
- histrionical — (British) Alternative form of histrionic.
- hockey skate — a tubular ice skate having a shorter blade than a racing skate and often having a reinforced shoe for protection.
- 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.
- holistically — incorporating the concept of holism, or the idea that the whole is more than merely the sum of its parts, in theory or practice: holistic psychology.
- holophrastic — using or consisting of a single word that functions as a phrase or sentence.
- horse racing — a contest of speed among horses that either are ridden by jockeys or pull sulkies and their drivers.
- horse-collar — (especially in baseball) a score of zero.
- 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 .
- hydroelastic — undergoing a change in elasticity as a result of the flow of water or another fluid
- hydronautics — (nautical) The science of the design and construction of ships, their engines, and their instrumentation.
- hydrostatics — the branch of hydrodynamics that deals with the statics of fluids, usually confined to the equilibrium and pressure of liquids.
- hygrochastic — of or relating to the opening of a fruit or flower caused by water or moisture
- hyper-social — relating to, devoted to, or characterized by friendly companionship or relations: a social club.
- hypercoaster — Megacoaster.
- hypersarcoma — a growth of proud or fungous flesh
- hypersomniac — a tendency to sleep excessively.
- hypsographic — a branch of geography that deals with the measurement and mapping of the topography of the earth above sea level.
- iatrochemist — a person who practises iatrochemistry
- ichthyosaurs — Plural form of ichthyosaur.
- iconomachist — a person who campaigns against the use of icons in religious worship
- icosahedrons — Plural form of icosahedron.
- in search of — looking for, seeking
- inchoateness — The quality of being inchoate.
- infographics — Plural form of infographic.
- ischiorectal — (anatomy) Of or pertaining to the region between the rectum and the ischial tuberosity.
- isochromatic — Optics. having the same color or tint.
- jackson hole — a valley in NW Wyoming, near the Teton Range: wildlife preserve.
- kitchen soap — heavy-duty soap intended for use in the kitchen