11-letter words containing o, r, t, h
- on the hour — If something happens on the hour, it happens every hour at, for example, nine o'clock, ten o'clock, and so on, and not at any number of minutes past an hour.
- on the rack — If you say that someone is on the rack, you mean that they are suffering either physically or mentally.
- on the road — a novel (1957) by Jack Kerouac.
- on the trot — If something happens several times on the trot, it happens that number of times without a break.
- on the turn — at the point of change
- one another — each other
- one-nighter — one-night stand.
- onslaughter — An onslaught.
- open-hearth — noting, pertaining to, or produced by the open-hearth process.
- openhearted — Frank and candid.
- or anything — You can add or anything to the end of a clause or sentence in order to refer vaguely to other things that are or may be similar to what has just been mentioned.
- or whatever — You say or whatever to refer generally to something else of the same kind as the thing or things that you have just mentioned.
- orchardists — Plural form of orchardist.
- orchestrate — Arrange or score (music) for orchestral performance.
- orchestrina — (musical instruments) orchestrion.
- orchestrion — a mechanical musical instrument, resembling a barrel organ but more elaborate, for producing the effect of an orchestra.
- orchid tree — a tree, Bauhinia variegata, of the legume family, native to southeastern Asia, having lavender or purple flowers clustered in the leaf axils, cultivated in warm regions.
- orchidotomy — incision of a testis.
- orchiectomy — excision of one or both testes; castration.
- orecchiette — small ear-shaped pasta pieces
- ornithology — the branch of zoology that deals with birds.
- ornithopods — Plural form of ornithopod.
- ornithopter — a heavier-than-air craft designed to be propelled through the air by flapping wings.
- ornithosaur — an extinct flying reptile
- orthoborate — (inorganic chemistry) Any anion derived from orthoboric acid; any salt containing this anion.
- orthocartan — (mathematics, tool) A system for symbolic mathematics, especially General Relativity, written by A. Krasinski of Warsaw in the early 1980s.
- orthocenter — the point of intersection of the three altitudes of a triangle.
- orthocentre — Point at which the perpendiculars from the angles of a triangle intersect.
- orthoclases — Plural form of orthoclase.
- orthodontal — the branch of dentistry dealing with the prevention and correction of irregular teeth, as by means of braces.
- orthodontia — orthodontics.
- orthodontic — Of, or relating to the dental speciality of orthodontics.
- orthodoxies — Plural form of orthodoxy.
- orthodromic — relating to orthodromy
- orthogenics — the treatment of mentally and emotionally disturbed children
- orthography — the art of writing words with the proper letters, according to accepted usage; correct spelling.
- orthohelium — (physics) Form of the helium atom in which the spins of the two electrons are parallel.
- orthometric — (crystallography) having axes at right angles.
- orthonormal — (of a system of functions) normal; normalized.
- orthopaedic — of or relating to orthopedics.
- orthopedics — (used with a singular verb) the medical specialty concerned with correction of deformities or functional impairments of the skeletal system, especially the extremities and the spine, and associated structures, as muscles and ligaments.
- orthopedist — (used with a singular verb) the medical specialty concerned with correction of deformities or functional impairments of the skeletal system, especially the extremities and the spine, and associated structures, as muscles and ligaments.
- orthophyric — of or relating to a texture in which the groundmass is characterized by closely packed, short, quadrilateral crystals of feldspar larger than those in a trachytic groundmass.
- orthopnoeic — difficult or painful breathing except in an erect sitting or standing position.
- orthopraxia — the correction of deformities; orthopedics.
- orthopteran — orthopterous.
- orthopteron — an orthopterous insect.
- orthoscopic — pertaining to, characterized by, or produced by normal vision.
- orthostates — orthostat.
- orthostatic — relating to or caused by erect posture.