12-letter words containing d, h, y, a
- hebdomadally — taking place, coming together, or published once every seven days; weekly: hebdomadal meetings; hebdomadal groups; hebdomadal journals.
- hedge laying — the art or practice of making or maintaining a hedge by cutting branches partway through, laying them horizontally, and pegging them in position in order to create a strong thick hedge
- hemihydrates — Plural form of hemihydrate.
- hemodialyses — Plural form of hemodialysis.
- hemodialysis — dialysis of the blood, especially with an artificial kidney, for the removal of waste products.
- hemodialyzer — artificial kidney.
- hemodynamics — the branch of physiology dealing with the forces involved in the circulation of the blood.
- henry howard — Earl of (Henry Howard) 1517?–47, English poet.
- heptahydrate — a hydrate that contains seven molecules of water, as magnesium sulfate, MgSO 4 ⋅7H 2 O.
- heraldically — of, relating to, or characteristic of heralds or heraldry: heraldic form; heraldic images; heraldic history; a heraldic device.
- herbicidally — from a herbicidal point of view
- hereditarily — passing, or capable of passing, naturally from parent to offspring through the genes: Blue eyes are hereditary in our family. Compare congenital.
- heterodactyl — having the first and fourth toes directed backward, and the second and third forward, as in trogons.
- hexadactylic — having six fingers or toes
- hexahydrates — Plural form of hexahydrate.
- hideaway bed — a sofa, loveseat, etc., that can be converted into a bed, usually by folding out a concealed mattress and springs.
- hidrocystoma — An adenoma of the sweat glands.
- high and dry — having a great or considerable extent or reach upward or vertically; lofty; tall: a high wall.
- highly rated — generally considered to be of high quality
- 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.
- hit pay dirt — to discover a source of wealth, success, etc.
- hoary-headed — having the gray or white hair of advanced age.
- holiday camp — In Britain, a holiday camp is a place which provides holiday accommodation and entertainment for large numbers of people.
- holiday home — a home that people own in order to holiday in and that is in a different location to the home they usually live in
- holidaymaker — vacationer.
- hollywoodian — a person who works for the motion-picture industry located in Hollywood, Calif.
- home and dry — If you say that someone is, in British English home and dry, or in American English home free, you mean that they have been successful or that they are certain to be successful.
- homodynamous — (biology) Pertaining to, or involving, homodynamy.
- honey badger — ratel.
- hook and eye — a two-piece clothes fastener, usually of metal, consisting of a hook that catches onto a loop or bar.
- how dare you — You say 'how dare you' when you are very shocked and angry about something that someone has done.
- human comedy — French La Comédie Humaine. a collected edition of tales and novels in 17 volumes (1842–48) by Honoré de Balzac.
- humboldt bay — an inlet of the Pacific Ocean in NW California.
- hundred days — the period from March 20 to June 28, 1815, between the arrival of Napoleon in Paris, after his escape from Elba, and his abdication after the battle of Waterloo.
- hybrid basis — A hybrid basis is a system of accounting that combines some of the features of cost basis with some of the features of accrual basis.
- hydatidiform — like or resembling a hydatid
- hydnocarpate — a salt or ester of hydnocarpic acid.
- hydra-headed — containing many problems, difficulties, or obstacles.
- hydrargyrism — mercurialism.
- hydrastinine — a white, crystalline, poisonous alkaloid, C 11 H 13 NO 3 , synthesized from hydrastine: used to arrest bleeding, especially in the uterus.
- hydraulicked — (of an extracted mineral) excavated using water
- hydrobromate — (chemistry) hydrobromide.
- 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 .
- 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.
- hydrodynamic — pertaining to forces in or motions of liquids.
- hydroelastic — undergoing a change in elasticity as a result of the flow of water or another fluid
- hydrogenated — to combine or treat with hydrogen, especially to add hydrogen to the molecule of (an unsaturated organic compound).
- hydrogenates — Third-person singular simple present indicative form of hydrogenate.
- hydrographer — the science of the measurement, description, and mapping of the surface waters of the earth, with special reference to their use for navigation.