12-letter words containing e, y, c, h, a
- herbicidally — from a herbicidal point of view
- hermetically — so as to be airtight: hermetically sealed.
- heterodactyl — having the first and fourth toes directed backward, and the second and third forward, as in trogons.
- hexacarbonyl — (inorganic chemistry) Any compound having six carbonyl groups.
- hexadactylic — having six fingers or toes
- hieratically — In a hieratic way.
- highway code — In Britain, the Highway Code is an official book published by the Department of Transport, which contains the rules which tell people how to use public roads safely.
- hire company — a company that hires things out to people
- hockey skate — a tubular ice skate having a shorter blade than a racing skate and often having a reinforced shoe for protection.
- human comedy — French La Comédie Humaine. a collected edition of tales and novels in 17 volumes (1842–48) by Honoré de Balzac.
- hydnocarpate — a salt or ester of hydnocarpic acid.
- hydraulicked — (of an extracted mineral) excavated using water
- hydrocephaly — an accumulation of serous fluid within the cranium, especially in infancy, due to obstruction of the movement of cerebrospinal fluid, often causing great enlargement of the head; water on the brain.
- hydrocracker — a high-pressure processing unit used for hydrocracking.
- hydroelastic — undergoing a change in elasticity as a result of the flow of water or another fluid
- hygienically — conducive to good health; healthful; sanitary.
- hyper-social — relating to, devoted to, or characterized by friendly companionship or relations: a social club.
- hyperacidity — excessive acidity, as of the gastric juice.
- hyperalgesic — Of or pertaining to hyperalgesia.
- hyperbolical — having the nature of hyperbole; exaggerated.
- hyperchaotic — Of or pertaining to hyperchaos.
- hypercoaster — Megacoaster.
- hyperdactyly — the presence of extra fingers or toes.
- hyperdynamic — (physiology) Describing an increase in both blood pressure and pulse pressure.
- hyperkalemic — Having a high percentage of potassium in one's blood.
- hyperlogical — reasoning in accordance with the principles of logic, as a person or the mind: logical thinking.
- hypermagical — produced by or as if by magic: The change in the appearance of the room was magical.
- hypermediacy — Hypermedia literacy; the state of being conversant with hypermedia technologies.
- hyperplastic — Of, or relating to hyperplasia.
- hyperreactor — a person who behaves in a hyperreactive manner
- hypersarcoma — a growth of proud or fungous flesh
- hypersomniac — a tendency to sleep excessively.
- hypersurface — a mathematical object that generalizes the concept of surface from three-dimensional Euclidean space to hyperspace.
- hypertypical — excessively typical
- hypoallergic — Hypoallergenic.
- hypocalcemia — an abnormally small amount of calcium in the blood.
- hypocalcemic — Relating to, or exhibiting, hypocalcemia.
- hypoglycemia — an abnormally low level of glucose in the blood.
- hypothecated — Simple past tense and past participle of hypothecate.
- hypothecator — to pledge to a creditor as security without delivering over; mortgage.
- hypothetical — assumed by hypothesis; supposed: a hypothetical case.
- hysterically — of, relating to, or characterized by hysteria.
- inchoatively — in an inchoative or rudimentary fashion; initially
- lady teacher — a teacher who is a woman
- lamp chimney — a glass tube that surrounds the wick in an oil lamp
- latchkey kid — variant form of latchkey child
- lay preacher — a preacher who is not a member of the clergy
- leachability — to dissolve out soluble constituents from (ashes, soil, etc.) by percolation.
- lexicography — the writing, editing, or compiling of dictionaries.
- lycanthropes — Plural form of lycanthrope.