11-letter words containing p, o, r, t
- nonpartizan — Alternative spelling of nonpartisan.
- nonpregnant — Not pregnant.
- nonpurulent — full of, containing, forming, or discharging pus; suppurating: a purulent sore.
- nonsporting — engaging in, disposed to, or interested in open-air or athletic sports: a rugged, sporting man.
- nontemporal — not indicating time
- nontropical — not located in or originating from the tropics, not having the characteristics of the tropics
- north slope — the northern coastal area of Alaska, rich in oil and natural gas: so called because it is N of the Brooks Range sloping down to the Arctic Ocean.
- northampton — a city in Northamptonshire, in central England.
- nuncupatory — Nuncupative; oral rather than written.
- nyctitropic — tending to assume at or just before nightfall positions unlike those maintained during the day, as the leaves or flowers of certain plants.
- obtemperate — (obsolete) To obey.
- odontograph — an instrument for laying out the forms of gear teeth or ratchets.
- odontophore — a structure in the mouth of most mollusks over which the radula is drawn backward and forward in the process of breaking up food.
- oligotrophy — the state of being oligotrophic, or deficient in nutrients but high in oxygen.
- ommatophore — a tentacle or movable stalk bearing an eye, as in certain snails.
- omnipresent — present everywhere at the same time: the omnipresent God.
- oncoprotein — (genetics, oncology, protein) A protein that is coded for by an oncogene.
- open letter — a letter, often of protest or criticism, addressed to a specific person, but intended to be brought to public attention.
- open market — an unrestricted competitive market in which any buyer and seller is free to participate.
- open secret — something supposedly secret but actually known quite generally.
- open string — a staircase string whose top follows the profile of the steps in such a way that the treads project beyond its outer face.
- open-hearth — noting, pertaining to, or produced by the open-hearth process.
- openhearted — Frank and candid.
- operability — that can be treated by a surgical operation. Compare inoperable (def 2).
- operational — able to function or be used; functional: How soon will the new factory be operational?
- operatively — a person engaged, employed, or skilled in some branch of work, especially productive or industrial work; worker.
- operativity — a person engaged, employed, or skilled in some branch of work, especially productive or industrial work; worker.
- operatories — a room or other area with special equipment and facilities, as for dental surgery, scientific experiments, or the like.
- operculated — relating to the operculum
- opinionator — (obsolete) An opinionated person; one given to conjecture.
- oppertunity — Misspelling of opportunity.
- oppignorate — to promise or give as security
- opportunely — appropriate, favorable, or suitable: an opportune phrase for the occasion.
- opportunism — the policy or practice, as in politics, business, or one's personal affairs, of adapting actions, decisions, etc., to expediency or effectiveness regardless of the sacrifice of ethical principles.
- opportunist — a person who practices opportunism, or the policy of adapting actions, decisions, etc., to effectiveness regardless of the sacrifice of ethical principles: He is an extreme opportunist and always thinks the ends justify the means.
- opportunity — an appropriate or favorable time or occasion: Their meeting afforded an opportunity to exchange views.
- oppurtunity — Misspelling of opportunity.
- optic nerve — either one of the second pair of cranial nerves, consisting of sensory fibers that conduct impulses from the retina to the brain.
- optical art — op art.
- optocoupler — An optoisolator.
- optometrist — a licensed professional who practices optometry.
- organ point — a tone sustained by one part, usually the bass, while other parts progress without reference to it.
- ornithopods — Plural form of ornithopod.
- ornithopter — a heavier-than-air craft designed to be propelled through the air by flapping wings.
- orthography — the art of writing words with the proper letters, according to accepted usage; correct spelling.
- 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.