12-letter words containing p, i, e, o
- on principle — an accepted or professed rule of action or conduct: a person of good moral principles.
- one's pigeon — one's special concern, or business
- onion-shaped — bulb-shaped; shaped like an onion
- onomatapoeia — Misspelling of onomatopoeia.
- onomatopoeia — the formation of a word, as cuckoo, meow, honk, or boom, by imitation of a sound made by or associated with its referent.
- onomatopoeic — the formation of a word, as cuckoo, meow, honk, or boom, by imitation of a sound made by or associated with its referent.
- open circuit — a discontinuous circuit through which no current can flow.
- open primary — a direct primary election in which voters need not meet a test of party membership.
- open trailer — any dog that barks or bays on the trail of its quarry.
- open verdict — law: coroner's jury finding
- opening time — You can refer to the time that a shop, bank, library, or bar opens for business as its opening time.
- opera singer — a professional singer of opera
- opera window — a narrow, fixed window on each side of the rear passenger compartment of an automobile.
- operatically — of or relating to opera: operatic music.
- operationism — the doctrine that the meaning of a scientific term, concept, or proposition consists of the operation or operations performed in defining or demonstrating it.
- operatorship — (in the oil and gas industries) the right to operate a well, field, or other oil source.
- opinionately — in a conceited or vain manner
- opinionative — of, relating to, or of the nature of opinion.
- opinionnaire — A form containing a list of statements, each of which the members of a selected group are asked to endorse or reject; the purpose being to gather information for a survey.
- opposite sex — man if woman, woman if man
- oppositeness — The state or condition of being opposite.
- oppressional — Exhibiting or relating to oppression.
- oppressively — burdensome, unjustly harsh, or tyrannical: an oppressive king; oppressive laws.
- optic center — a point about ten percent above the exact center of a printed page or layout.
- optical grep — vgrep
- option money — the price paid for buying an option
- optogenetics — (genetics) A science that combines optics and genetics to probe neural 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.
- ordered pair — Mathematics. two quantities written in such a way as to indicate that one quantity precedes or is to be considered before the other, as (3, 4) indicates the Cartesian coordinates of a point in the plane.
- 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.
- ornithopters — Plural form of ornithopter.
- 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.
- 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.
- oscilloscope — a device that gives a visual graph of amplitude versus time of a measured signal, as voltage or current.
- osteoplastic — Surgery. pertaining to osteoplasty.
- 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.
- outcompeting — to strive to outdo another for acknowledgment, a prize, supremacy, profit, etc.; engage in a contest; vie: to compete in a race; to compete in business.
- outlet point — an opening (on a pipe, etc) permitting escape or release (of liquid, etc)
- outside loop — a loop during which the back of the airplane is on the outer side of the curve described by the course of flight.
- outspreading — Present participle of outspread.
- over-explain — to make plain or clear; render understandable or intelligible: to explain an obscure point. Synonyms: explicate. Antonyms: confuse.
- over-precise — definitely or strictly stated, defined, or fixed: precise directions.
- over-promise — a declaration that something will or will not be done, given, etc., by one: unkept political promises.
- overcapacity — capacity beyond what is normal, allowed, or desirable.