12-letter words containing a, l, d, r
- hardy annual — a plant that can withstand freezing temperatures and which completes its life cycle within a year
- harlequinade — a pantomime, farce, or similar play in which Harlequin plays the principal part.
- harold stark — Harold Raynsford [reynz-ferd] /ˈreɪnz fərd/ (Show IPA), 1880–1972, U.S. admiral.
- hazard light — Usually, hazard lights. an indicator light on a vehicle that flashes to warn that it is unexpectedly slowing down, reversing, or not moving.
- headmasterly — In a manner befitting a headmaster.
- headstrongly — In a headstrong manner.
- health drink — a drink that claims to be beneficial to health
- hedda gabler — a play (1890) by Henrik Ibsen.
- hedge garlic — an erect, cruciferous herb, Sisymbrium officinale, having a garlicky odor.
- heliographed — Simple past tense and past participle of heliograph.
- hemodialyzer — artificial kidney.
- hemorrhoidal — Usually, hemorrhoids. Pathology. an abnormally enlarged vein mainly due to a persistent increase in venous pressure, occurring inside the anal sphincter of the rectum and beneath the mucous membrane (internal hemorrhoid) or outside the anal sphincter and beneath the surface of the anal skin (external hemorrhoid)
- 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.
- hexachloride — a chloride containing six atoms of chlorine.
- hexafluoride — a fluoride containing six atoms of fluorine.
- highly rated — generally considered to be of high quality
- hinterlander — One who lives in the hinterland.
- holidaymaker — vacationer.
- horse-dealer — a person who buys and sells horses as a profession
- 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.
- hydroelastic — undergoing a change in elasticity as a result of the flow of water or another fluid
- hydrological — the science dealing with the occurrence, circulation, distribution, and properties of the waters of the earth and its atmosphere.
- hydrolysable — Alternative spelling of hydrolyzable.
- hydrolysates — Plural form of hydrolysate.
- hydrolyzable — Able to be hydrolyzed.
- hydronically — in a hydronic manner; in a manner relating to a heating system that uses water
- hydroplaning — a seaplane.
- hydrosalpinx — A distally blocked Fallopian tube filled with serous or clear fluid.
- hydrosulfate — a salt formed by the direct union of sulfuric acid with an organic base, especially an alkaloid, and usually more soluble than the base.
- hydrothermal — noting or pertaining to the action of hot, aqueous solutions or gases within or on the surface of the earth.
- hydroxylated — Simple past tense and past participle of hydroxylate.
- hyperdactyly — the presence of extra fingers or toes.
- iceland spar — a transparent variety of calcite that is double-refracting and is used as a polarizer.
- idolatrously — In an idolatrous manner.
- ill-assorted — badly matched; incompatible
- ill-favoured — unpleasant in appearance; homely or ugly.
- ill-mannered — having bad or poor manners; impolite; discourteous; rude.
- ill-prepared — badly or inadequately prepared or trained: ill-prepared job applicants; The hotel was ill-prepared for so many guests.
- imidacloprid — The insecticide 1-(6-chloro-3-pyridylmethyl)-N-nitroimidazolidin-2-ylideneamine used to control fleas in domestic pets.
- immoderately — In an immoderate manner.
- immortalised — to bestow unending fame upon; perpetuate.
- immortalized — to bestow unending fame upon; perpetuate.
- impardonable — (obsolete) unpardonable.
- imperialised — Simple past tense and past participle of imperialise.
- imperialized — Simple past tense and past participle of imperialize.
- imponderable — not ponderable; that cannot be precisely determined, measured, or evaluated.