12-letter words containing t, r, o, p
- operatorless — Without an operator (person who operates); fully automatic.
- operatorship — (in the oil and gas industries) the right to operate a well, field, or other oil source.
- ophiolatrous — of, relating to, or practising snake-worshipping
- opinionators — Plural form of opinionator.
- opisthograph — a manuscript, parchment, or book having writing on both sides of the leaves.
- opportunists — Plural form of opportunist.
- optic center — a point about ten percent above the exact center of a printed page or layout.
- optical grep — vgrep
- optoisolator — A device that transmits a signal optically between two isolated electronic circuits.
- optometrical — the practice or profession of examining the eyes, by means of suitable instruments or appliances, for defects in vision and eye disorders in order to prescribe corrective lenses or other appropriate treatment.
- optometrists — Plural form of optometrist.
- oreopithecus — a genus of fossil primate from the Miocene coal deposits of Italy, formerly considered to be a possible hominid.
- organoleptic — perceived by a sense organ.
- organotropic — designating or of a substance or virus that travels predominantly to a specific organ
- ornithomorph — the artistic representation of a bird
- ornithophily — pollination of flowers by birds
- ornithopters — Plural form of ornithopter.
- ornithoscopy — divination from the observation of birds
- orthographer — a person versed in orthography or spelling.
- orthographic — of or relating to orthography.
- orthopaedics — (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.
- orthopaedist — Alternative spelling of orthopedist.
- orthopedical — (American spelling) Alternative form of orthopaedical.
- orthopterans — Plural form of orthopteran.
- orthopterist — someone who studies the Orthoptera
- orthopteroid — (zoology) Any of the insects historically included in the order Orthoptera, including the cockroaches, earwigs, praying mantises, etc.
- orthopterous — belonging or pertaining to the Orthoptera, an order of insects, including the cockroaches, mantids, walking sticks, crickets, grasshoppers, and katydids, characterized by leathery forewings, membranous hind wings, and chewing mouthparts.
- orthotropism — Botany. orthotropic tendency or growth.
- orthotropous — Botany. (of an ovule) straight and symmetrical, with the chalaza at the evident base and the micropyle at the opposite extremity.
- osmoreceptor — A sensory receptor, primarily found in the hypothalamus of most homeothermic organisms, that detects changes in osmotic pressure.
- osteoporosis — a disorder in which the bones become increasingly porous, brittle, and subject to fracture, owing to loss of calcium and other mineral components, sometimes resulting in pain, decreased height, and skeletal deformities: common in older persons, primarily postmenopausal women, but also associated with long-term steroid therapy and certain endocrine disorders.
- osteoporotic — of, relating to, or caused by osteoporosis.
- out of print — of, for, or comprising newspapers and magazines: print media.
- out-of-print — being no longer published; no longer printed or reprinted: a bookstore specializing in out-of-print books.
- outcroppings — Plural form of outcropping.
- outer planet — any of the four planets with orbits outside the orbit of Mars, namely, the planets Jupiter, Saturn, Uranus, and Neptune.
- outperformed — Simple past tense and past participle of outperform.
- outperformer — One who outperforms.
- outreproduce — to reproduce more prolifically than
- outspreading — Present participle of outspread.
- outstripping — to outdo; surpass; excel.
- over the top — the highest or loftiest point or part of anything; apex; summit. Synonyms: zenith, acme, peak, pinnacle, vertex. Antonyms: bottom, base, foot, lowest point.
- over-the-top — the highest or loftiest point or part of anything; apex; summit. Synonyms: zenith, acme, peak, pinnacle, vertex. Antonyms: bottom, base, foot, lowest point.
- overcapacity — capacity beyond what is normal, allowed, or desirable.
- overemphatic — excessive or undue emphasis.
- overexplicit — excessively explicit
- overmultiply — to increase too much or too often
- overoptimism — a disposition or tendency to look on the more favorable side of events or conditions and to expect the most favorable outcome.
- overoptimist — someone who is too optimistic
- overplotting — the provision of an excessively elaborate plot