11-letter words starting with o
- ostentation — pretentious or conspicuous show, as of wealth or importance; display intended to impress others.
- ostentators — Plural form of ostentator.
- osteoblasts — Plural form of osteoblast.
- osteoclases — Plural form of osteoclasis.
- osteoclasis — Physiology. the breaking down or absorption of osseous tissue.
- osteoclasts — Plural form of osteoclast.
- osteodermal — characterized by osteoderms
- osteodermic — of or like an osteoderm
- osteogenous — the formation of bone.
- osteography — The scientific description of bones; osteology.
- osteologist — the branch of anatomy dealing with the skeleton.
- osteopathic — Of or pertaining to osteopathy or osteopathic medicine.
- osteophytes — Plural form of osteophyte.
- osteophytic — a small osseous excrescence or outgrowth on bone.
- osteoplasty — plastic surgery on a bone to repair a defect or loss.
- osteotomies — Plural form of osteotomy.
- ostpreussen — a former province in NE Germany: an enclave separated from Germany by the Polish Corridor; now divided between Poland and the Russian Federation. 14,283 sq. mi. (36,993 sq. km). Capital: Königsberg.
- ostracising — Present participle of ostracise.
- ostracizing — Simple past tense and past participle of ostracize.
- ostracoderm — any of several extinct jawless fishes of the Ordovician, Silurian, and Devonian periods, having the body enclosed in an armor of bony plates.
- ostreaceous — oyster-like
- ostreophage — someone who loves or eats oysters
- ostreophagy — the consumption of oysters
- ostrich egg — the large egg produced by a fast-running flightless African bird, Struthio camelus, that is the largest living bird, with stout two-toed feet and dark feathers, except on the naked head, neck, and legs: order Struthioniformes
- ostrichlike — a large, two-toed, swift-footed flightless bird, Struthio camelus, indigenous to Africa and Arabia, domesticated for its plumage: the largest of living birds.
- other ranks — (in the armed forces) all those who do not hold a commissioned rank
- other woman — a woman who is romantically or sexually involved with another woman's husband or lover, especially a woman who is having an affair with a married man.
- other world — the world after death; the future world.
- otherwhiles — at other times, sometimes
- otherworlds — Plural form of otherworld.
- otherworldy — With a quality unlike those normal to everyday life, or outside typical human experience.
- otoacoustic — Of or pertaining to sounds generated by the inner ear.
- ototoxicity — Damage to the ear, specifically the cochlea and sometimes the vestibular system, by a toxin.
- ottava rima — an Italian stanza of eight lines, each of eleven syllables (or, in the English adaptation, of ten or eleven syllables), the first six lines rhyming alternately and the last two forming a couplet with a different rhyme: used in Keats' Isabella and Byron's Don Juan.
- otter board — one of a pair of large, heavy, square or rectangular plates or boards of metal or weighted wood attached to the trawl lines on each side of the mouth of a trawl net to maintain lateral spread during trawling.
- otter hound — one of an English breed of water dogs having a thick, shaggy, oily coat, trained to hunt otter.
- otter shrew — a chiefly aquatic insectivore, Potamogale velox, of western Africa, that resembles an otter, having sleek, brown fur and a flattened tail.
- otter trawl — a trawl net equipped with otter boards.
- otto engine — a four-stroke petrol engine
- Ötztal alps — division of the E Alps, along the Austrian-Italian border: highest peak, 12,379 ft (3,773 m)
- ouagadougou — a republic in W Africa: formerly part of French West Africa. 106,111 sq. mi. (274,827 sq. km). Capital: Ouagadougou.
- ouija board — board used by spiritualists
- our time(s) — When you refer to our time or our times you are referring to the present period in the history of the world.
- out of date — gone out of style or fashion; outmoded; obsolete: out-of-date fashions; out-of-date ideas.
- out of gear — out of order; not functioning properly
- out of hand — the terminal, prehensile part of the upper limb in humans and other primates, consisting of the wrist, metacarpal area, fingers, and thumb.
- out of line — a mark or stroke long in proportion to its breadth, made with a pen, pencil, tool, etc., on a surface: a line down the middle of the page.
- out of luck — the force that seems to operate for good or ill in a person's life, as in shaping circumstances, events, or opportunities: With my luck I'll probably get pneumonia.
- out of step — a movement made by lifting the foot and setting it down again in a new position, accompanied by a shifting of the weight of the body in the direction of the new position, as in walking, running, or dancing.
- out of sync — out of synchronization (with)