16-letter words containing a, c, r, i
- of a certain age — of an unspecified age, but no longer young
- of it own accord — If something happens of its own accord, it seems to happen by itself, without anyone making it happen.
- off-road vehicle — An off-road vehicle is a vehicle that is designed to travel over rough ground.
- official referee — (in England) a circuit judge attached to the High Court who is empowered to try certain cases, esp where a detailed examination of accounts or other documents is involved
- ohmic resistance — resistance (def 3a).
- oligosaccharides — Plural form of oligosaccharide.
- open scholarship — a scholarship which anyone can apply for
- operating income — revenue from business operations after operating expenses are deducted from gross income.
- optical computer — an experimental computer that uses photons rather than electrical impulses to process data a thousand times faster than with conventional integrated circuits.
- optical rotation — the angle at which the plane of polarized light is rotated when passed through an optically active substance.
- optical tweezers — a laser device used to study, manipulate, or trap a microscopic object, as a microorganism or cell, with nanometer precision.
- orbital velocity — the minimum velocity at which a body must move to maintain a given orbit.
- organ-pipe coral — an alcyonarian coral of the genus Tubipora, occurring in tropical waters, and forming a complex colony of brick-red, vertical tubules joined at intervals by transverse plates.
- organoleptically — In an organoleptic manner.
- ornithologically — In terms of ornithology.
- orographic cloud — any cloud whose existence and form are largely controlled by the disturbed flow of air over and around mountains, as the banner cloud and crest cloud.
- orthoformic acid — a hypothetical acid, HC(OH) 3 , known only in the form of its esters.
- orthographically — In an orthographical manner; using proper spelling, capitalization and grammar.
- orthosympathetic — Of or pertaining to the sympathetic component of the autonomic nervous system.
- over-application — the act of putting to a special use or purpose: the application of common sense to a problem.
- over-communicate — to impart knowledge of; make known: to communicate information; to communicate one's happiness.
- over-cultivation — the act or art of cultivating.
- over-expectation — the act or the state of expecting: to wait in expectation.
- over-romanticize — to make romantic; invest with a romantic character: Many people romanticize the role of an editor.
- over-speculation — the contemplation or consideration of some subject: to engage in speculation on humanity's ultimate destiny.
- overaccumulation — Accumulation of too much.
- overcapitalizing — Present participle of overcapitalize.
- overcautiousness — the quality or state of being too cautious, wary, or careful
- overcompensating — Present participle of overcompensate.
- overcompensation — a pronounced striving to neutralize and conceal a strong but unacceptable character trait by substituting for it an opposite trait.
- overcomplicating — Present participle of overcomplicate.
- overdramatically — In an overdramatic manner.
- overenthusiastic — full of or characterized by enthusiasm; ardent: He seems very enthusiastic about his role in the play.
- overexcitability — to excite too much.
- pacific sturgeon — a dark gray sturgeon, Acipenser transmontanus, inhabiting marine and fresh waters along the northwestern coast of North America, valued as a food and sport fish.
- packing fraction — Physics. a measure of the stability of an atomic nucleus, equal to 10 4 multiplied by the mass defect and divided by the mass number.
- paediatric nurse — a nurse who specializes in the care of children
- pair of scissors — two-bladed cutting tool
- pancreatic juice — a thick, colorless, very alkaline fluid secreted by the pancreas, containing enzymes that break down protein, fat, and starch.
- panoramic camera — a still camera having a movable lens that horizontally scans a view while exposing a long photographic plate or strip of film.
- panoramic screen — a very wide screen, as of a television, etc
- papillary muscle — one of the small bundles of muscles attached to the ventricle walls and to the chordae tendineae that tighten these tendons during ventricular contraction.
- parachute rigger — a person who inspects, repairs, and packs or folds parachutes.
- paradigmatically — of or relating to a paradigm.
- paratuberculosis — Johne's disease.
- parochial school — a primary or secondary private school supervised by a religious organization, especially a Roman Catholic day school affiliated with a parish or a holy order.
- parochialization — a parochial character, spirit, or tendency; excessive narrowness of interests or view; provincialism.
- partial fraction — one of the fractions into which a given fraction can be resolved, the sum of such simpler fractions being equal to the given fraction: Partial fractions of 5/(x2−x) are 5/(x−1) and −5/x.
- partial function — A function which is not defined for all arguments of its input type. E.g. f(x) = 1/x if x /= 0. The opposite of a total function. In denotational semantics, a partial function f : D -> C may be represented as a total function ft : D' -> lift(C) where D' is a superset of D and ft x = f x if x in D ft x = bottom otherwise where lift(C) = C U bottom. Bottom (LaTeX \perp) denotes "undefined".
- particle physics — the branch of physics that deals with the properties and behavior of elementary particles.