12-letter words containing a, r, t, h, o, c
- dutch harbor — a U.S. naval base on Unalaska Island, in the Aleutian Islands.
- earth closet — a type of lavatory in which earth is used to cover excreta
- earth colour — any of various brown pigments composed chiefly of iron oxides
- echolocators — Plural form of echolocator.
- ectypography — a form of etching or engraving in which the design is produced in relief
- electroclash — a type of electronic music, originating in the first decade of the 21st century, that combines modern techno with synthesizer music characteristic of the 1980s
- electrograph — A machine used in gravure printing.
- encroachment — Intrusion on a person's territory, rights, etc.
- endotracheal — Situated or occurring within or performed by way of the trachea.
- etheromaniac — a person who is addicted to ether
- ethnographic — Relating to ethnography.
- eutrophicate — (ecology, intransitive) To become eutrophic.
- factory ship — a whaling ship equipped to process killed whales and to transport the oil and by-products.
- fish factory — a factory where fish is processed
- flowcharting — (computing) the design and construction of flowcharts.
- fourth-class — of, relating to, or designated as a class next below third, as for mailing, shipping, etc.
- fractography — the study of fractures or cracks in a material, esp metal, in order to predict or identify the cause of a failure in a structure
- french toast — bread dipped in a batter of egg and milk and sautéed until brown, usually served with syrup or sprinkled with sugar and cinnamon.
- from scratch — to break, mar, or mark the surface of by rubbing, scraping, or tearing with something sharp or rough: to scratch one's hand on a nail.
- galactophore — a galactophorous duct.
- galactorrhea — an abnormally abundant flow of milk in a lactating woman.
- gothic armor — white armor of the 15th century, marked especially by much fluting and ornamentation.
- hallucinator — One whose judgment and acts are affected by hallucinations; one who errs on account of his hallucinations.
- halobacteria — Plural form of halobacterium.
- halotrichite — a mineral, iron alum, isomorphous with pickeringite, occurring in the form of yellowish fibers.
- haricot bean — Haricot beans are small white beans that are eaten as a vegetable. They are often sold dried rather than fresh.
- haricot vert — green bean.
- hark back to — recall: earlier era
- helicobacter — Any member of the Helicobacter bacteria.
- hemichordate — belonging or pertaining to the chordates of the phylum Hemichordata, comprising small, widely distributed, marine animals, as the acorn worms.
- heterocercal — having an unequally divided tail, characteristic of sharks, rays, and skates.
- heterodactyl — having the first and fourth toes directed backward, and the second and third forward, as in trogons.
- heterosocial — relating to or denoting mixed-sex social relationships
- heterotactic — of, relating to, or characterized by heterotaxis.
- hidrocystoma — An adenoma of the sweat glands.
- hierophantic — (in ancient Greece) an official expounder of rites of worship and sacrifice.
- hippocentaur — Centaur.
- histographic — a treatise on or description of organic tissues.
- historically — of, pertaining to, treating, or characteristic of history or past events: historical records; historical research.
- histrionical — (British) Alternative form of histrionic.
- holophrastic — using or consisting of a single word that functions as a phrase or sentence.
- home teacher — private tutor
- homoromantic — Romantically attracted to those of the same gender.
- horometrical — Relating to horometry.
- hovering act — an act forbidding or restricting the loitering of foreign or domestic vessels within the prescribed limits of a coastal nation.
- hydnocarpate — a salt or ester of hydnocarpic acid.
- 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