10-letter words containing p, a, r, o
- autography — the writing of something in one's own handwriting; something handwritten
- autorepeat — Any feature that repeats an action automatically.
- autotrophs — Plural form of autotroph.
- autotrophy — (in certain plants and bacteria) the process of making food from inorganic substances, using photosynthesis
- autotropic — Growing in a straight line.
- auxospores — Plural form of auxospore.
- auxotrophs — Plural form of auxotroph.
- auxotrophy — the inability to synthesize particular growth factors, due to mutational changes
- azeotropes — Plural form of azeotrope.
- azygospore — a thick-walled spore produced by parthenogenesis in certain algae and fungi
- barbershop — Barbershop is a style of singing where a small group of people, usually men, sing in close harmony and without any musical instruments accompanying them.
- bargepoles — Plural form of bargepole.
- baroceptor — Baroreceptor.
- barographs — Plural form of barograph.
- barophilic — (of living organisms) growing best in conditions of high atmospheric pressure
- barophobia — The fear of gravity or objects falling.
- baroscopic — Relating to, or determined by, the baroscope.
- barotropic — having a density that is a function only of pressure.
- barpersons — Plural form of barperson.
- barrow pit — a roadside borrow pit dug for drainage purposes.
- baseperson — (baseball, softball) A fielder (of either gender) positioned near a base.
- bay poplar — the tupelo, Nyssa aquatica.
- beg-pardon — an expression of apology (used especially in the phrase with no beg-pardons).
- bicorporal — having two bodies, main divisions, symbols, etc.
- biographee — a person whose biography has been written
- biographer — Someone's biographer is a person who writes an account of their life.
- biographic — of or relating to a person's life: He's gathering biographical data for his book on Milton.
- bioprivacy — the state of freedom from others having unauthorized access to biometric data about oneself
- biotherapy — the treatment of disease by means of substances, as serums, vaccines, penicillin, etc., secreted by or derived from living organisms
- bipolarity — having two poles, as the earth.
- bipolarize — to make bipolar
- bladderpod — any of several plants belonging to the genera Alyssoides and Lesquerella, of the mustard family, having inflated seed pods.
- blastopore — the opening of the archenteron in the gastrula that develops into the anus of some animals
- boarded-up — with windows and doors covered with boards for security
- bodyshaper — an undergarment which flattens the stomach, bottom etc
- bond paper — a superior quality of strong white paper, used esp for writing and typing
- booby-trap — A booby-trap is something such as a bomb which is hidden or disguised and which causes death or injury when it is touched.
- borah peak — a mountain in central Idaho, in the Lost River Range: highest peak in Idaho. 12,662 feet (3861 meters).
- brachiopod — any marine invertebrate animal of the phylum Brachiopoda, having a ciliated feeding organ (lophophore) and a shell consisting of dorsal and ventral valves
- brainpower — Brainpower is intelligence or the ability to think.
- bread shop — a baker's shop
- breakpoint — an instruction inserted by a debug program causing a return to the debug program
- breastplow — a cultivator moved forward by a person pressing the chest against a crossbar.
- brillo pad — a scouring pad made of wire wool filled with soap
- broad jump — an exercise and athletic contest in which competitors try to jump the farthest distance possible from a standing start from a fixed board or mark
- broad-jump — long-jump.
- broadpiece — an English coin replaced by the guinea in 1663
- brook park — a city in NE Ohio.
- buonaparte — Bonaparte1
- cacography — bad handwriting