10-letter words containing r, o, c, a, i
- periodical — a magazine or other journal that is issued at regularly recurring intervals.
- peroxyacid — an acid derived from hydrogen peroxide and containing the –O–O– group, as peroxysulfuric acid, H 2 S 2 O 8 .
- physiocrat — one of a school of political economists who followed Quesnay in holding that an inherent natural order properly governed society, regarding land as the basis of wealth and taxation, and advocating a laissez-faire economy.
- pictograph — pictogram
- pictorials — pertaining to, expressed in, or of the nature of a picture.
- pleromatic — relating to the pleroma
- police car — squad car.
- polyandric — polyandrous.
- polyarchic — a form of government in which power is vested in three or more persons.
- polycarpic — producing fruit many times, as a perennial plant.
- pratincole — any of several limicoline birds of the genus Glareola, of the Eastern Hemisphere, having a short bill, long, narrow, pointed wings, and a forked tail.
- pre-atomic — of or relating to the period of history preceding the atomic age.
- precarious — dependent on circumstances beyond one's control; uncertain; unstable; insecure: a precarious livelihood.
- precaution — a measure taken in advance to avert possible evil or to secure good results.
- predacious — predatory; rapacious.
- predicator — the verbal element of a clause or sentence.
- prelogical — according to or agreeing with the principles of logic: a logical inference.
- prevocalic — immediately preceding a vowel.
- privy coat — a mail shirt worn under ordinary clothing as a defense against swords or daggers.
- pro-acting — serving temporarily, especially as a substitute during another's absence; not permanent; temporary: the acting mayor.
- pro-active — serving to prepare for, intervene in, or control an expected occurrence or situation, especially a negative or difficult one; anticipatory: proactive measures against crime.
- procacious — insolent
- procambium — the meristem from which vascular bundles are developed.
- proclaimer — to announce or declare in an official or formal manner: to proclaim war.
- proclinate — (of a part) directed or inclined forward.
- proctalgia — neural pain in the rectum or anus
- profascist — a person who believes in or sympathizes with fascism.
- profligacy — shameless dissoluteness.
- prognathic — having protrusive jaws; having a gnathic index over 103.
- prolicidal — characteristic of prolicide
- prosaicism — prosaic character or style.
- provincial — belonging or peculiar to some particular province; local: the provincial newspaper.
- pyromaniac — a compulsion to set things on fire.
- pyromantic — divination by fire, or by forms appearing in fire.
- quadricone — a quadric surface swept out by a straight line that passes through a fixed point such that no straight line can intersect it at more than two points
- racemation — a bunch, collection, or group
- racemiform — having the form of a raceme.
- rachiotomy — (surgery) The surgical procedure of cutting, or making an incision in a vertebra.
- radication — the act or process of taking root
- radiciform — resembling a root
- radiculose — having small roots or rhizoids
- radiogenic — Physics. produced by radioactive decay: radiogenic lead; radiogenic heat.
- radiologic — of or relating to radiology.
- radiolytic — the dissociation of molecules by ionizing radiation.
- radioscope — an instrument, such as a fluoroscope, capable of detecting radiant energy
- radioscopy — the examination of objects opaque to light by means of another form of radiation, usually x-rays.
- radiotoxic — causing radiation sickness.
- rain cloud — a cloud or a mass of clouds that yields rain.
- rain-cloud — a cloud or a mass of clouds that yields rain.
- rascallion — a villain, a rascal