12-letter words containing h, o, a, r
- atheoretical — having no connection with and not founded on theory
- atheromatous — a sebaceous cyst.
- atholl brose — a mixture of whisky and honey left to ferment before consumption
- athrocytosis — the capability of a cell to receive and store matter
- atmospherics — Atmospherics are elements in something such as a piece of music or a book which create a certain atmosphere.
- atmospherium — an optical system used to simulate images of atmospheric phenomena, as cloud formations, storms, and day and night, on the inside of a dome.
- atom smasher — accelerator (sense 3)
- attenborough — Sir David. born 1926, British naturalist and broadcaster; noted esp for his TV series Life on Earth (1978), The Living Planet (1983), The Life of Birds (1998), The Life of Mammals (2002), and First Life (2010)
- attorneyship — The office or profession of an attorney.
- auger shower — a shower of electrons, photons, etc. resulting from the collision of primary cosmic rays with atomic nuclei in the atmosphere
- australopith — (archaeology, anthropology, paleonotology) Of or pertaining to the extinct hominid primates, of the genus Australopithecus, from the Pleistocene period.
- autapomorphy — (cladistics) A derived trait that is unique to a particular taxon.
- authorizable — able to be authorized
- autochangers — Plural form of autochanger.
- autographing — Present participle of autograph.
- automorphism — the practice of seeing others as having the same characteristics as oneself
- autorhythmic — That generates its own rhythm.
- autorickshaw — (in India) a light three-wheeled vehicle driven by a motorcycle engine
- azathioprine — a synthetic drug that suppresses the normal immune responses of the body and is administered orally during and after organ transplantation and also in certain types of autoimmune disease. Formula: C9H7N7O2S
- azithromycin — A macrolide antibiotic derived from erythromycin.
- baby brother — a younger brother
- bachelor pad — a flat in which a bachelor lives
- bachelorette — A bachelorette is a woman who has never married.
- bachelorhood — the state of being a bachelor.
- bachelorship — the state of being a bachelor; bachelorhood
- bagworm moth — any moth of the family Psychidae
- barophoresis — the diffusion of suspended particles at a rate dependent on external forces
- bathochromic — denoting or relating to a shift to a longer wavelength in the absorption spectrum of a compound
- baton charge — A baton charge is an attacking forward movement made by a large group of policemen carrying batons.
- battleworthy — capable of engaging in combat; ready for battle: a decline in the nation's battleworthy forces.
- beach-comber — a person who lives by gathering salable articles of jetsam, refuse, etc., from beaches.
- beachcombers — Plural form of beachcomber.
- bean-shooter — peashooter.
- beaver cloth — beaver1 (def 8).
- behaviorally — manner of behaving or acting.
- behaviourism — Behaviourism is the belief held by some psychologists that the only valid method of studying the psychology of people or animals is to observe how they behave.
- beyond reach — inaccessible
- bibliography — A bibliography is a list of books on a particular subject.
- biogeography — the branch of biology concerned with the geographical distribution of plants and animals
- biographical — Biographical facts, notes, or details are concerned with the events in someone's life.
- biohazardous — a pathogen, especially one used in or produced by biological research.
- birthday boy — the boy or man whose birthday is being celebrated
- blabbermouth — a person who talks too much or indiscreetly
- black heroin — a very potent and addictive form of heroin that is dark-colored.
- blastosphere — blastula
- blennorrhoea — an excessive discharge of watery mucus, esp from the urethra or the vagina
- bletheration — nonsense!
- block heater — an electrically operated immersion heater fitted either to enter the water hose or the water jacket surrounding the cylinder block of a motor to warm the coolant in cold weather.
- boar-hunting — the practice of hunting wild boars
- board school — (formerly) a school managed by a board elected by local ratepayers