15-letter words containing a, r, c, t
- olfactory tract — a long narrow triangular band of white tissue originating in the olfactory bulb and extending back to the point at which its fibres enter the base of the cerebrum
- omnidirectional — sending or receiving signals in all directions: an omnidirectional microphone.
- on the contrary — opposite in nature or character; diametrically or mutually opposed: contrary to fact; contrary propositions.
- on the decrease — decreasing
- on the increase — growing, increasing
- on the track of — If you are on the track of someone or something, you are trying to find them, or find information about them.
- operating cycle — the period of time between starting a business and making a profit
- optical printer — a film printer used in making optical effects, consisting basically of a camera that photographs the image with special lenses to enlarge, reduce, distort, etc., and a projector that transfers the image to the print stock, as distinguished from a contact printer.
- optical scanner — the process of interpreting data in printed, handwritten, bar-code, or other visual form by a device (optical scanner or reader) that scans and identifies the data.
- optical storage — optical disk drive
- orchestrational — Of or pertaining to orchestration.
- oriental carpet — Oriental rug.
- orthoboric acid — boric acid (def 1). Compare ortho- (def 2).
- orthodontically — from an orthodontic point of view
- orthopaedic bed — a specially firm bed designed to help correct or ameliorate the discomfort of disorders of the spine and joints
- orthopaedically — in an orthopaedic manner
- orthopsychiatry — an approach to psychiatry concerned with the study and treatment of behavioral disorders, especially of young people.
- out of practice — If you are out of practice at doing something, you have not had much experience of it recently, although you used to do it a lot or be quite good at it.
- outreach worker — a person who does work designed to help and encourage disadvantaged members of the community
- outside caliper — a caliper whose legs turn inward so that it can measure outside dimensions, as the diameter of a rod.
- over-accentuate — to give emphasis or prominence to.
- over-analytical — pertaining to or proceeding by analysis (opposed to synthetic).
- over-articulate — excessively articulate
- over-capitalise — to fix the total amount of securities of a corporation in excess of the limits set by law or by sound financial policy.
- over-compensate — to compensate or reward excessively; overpay: Some stockholders feel the executives are being overcompensated and that bonuses should be reduced.
- over-cultivated — to prepare and work on (land) in order to raise crops; till.
- over-extraction — an act or instance of extracting: the extraction of a molar.
- over-particular — of or relating to a single or specific person, thing, group, class, occasion, etc., rather than to others or all; special rather than general: one's particular interests in books.
- overachievement — to perform, especially academically, above the potential indicated by tests of one's mental ability or aptitude.
- overapplication — excessive application
- overcapitalized — Simple past tense and past participle of overcapitalize.
- overcapitalizes — Third-person singular simple present indicative form of overcapitalize.
- overcommunicate — to communicate excessively
- overcompensated — to compensate or reward excessively; overpay: Some stockholders feel the executives are being overcompensated and that bonuses should be reduced.
- overcompensates — Third-person singular simple present indicative form of overcompensate.
- overcultivation — the act or art of cultivating.
- overexpectation — excessive expectation
- overorchestrate — to compose or arrange excessively
- overspeculation — the contemplation or consideration of some subject: to engage in speculation on humanity's ultimate destiny.
- oxytetracycline — a dull-yellow, crystalline antibiotic powder, C 2 2 H 2 4 N 2 O 9 , produced by Streptomyces rimosus, used chiefly in treating infections caused by streptococci, staphylococci, Gram-negative bacilli, rickettsiae, and certain protozoans and viruses.
- painter's colic — Pathology. lead poisoning causing intense intestinal pain.
- pair production — Physics. the simultaneous creation of a particle and its antiparticle by a nucleus or particle in an excited state, as when a photon is absorbed.
- palaeoanthropic — relating to palaeoanthropology
- palliative-care — medical care focused on improving the quality of life of patients with serious illnesses, as by treating symptoms and providing emotional support.
- pamprodactylous — having all four toes directed forward, as in swifts and colies.
- panoramic sight — an artillery sight that can be rotated horizontally in a full circle.
- pantopragmatics — universal intervention in the affairs of others
- paracetaldehyde — paraldehyde.
- parachute brake — a parachute opened horizontally from the tail of an airplane upon landing, used as an aid in braking. Also called parabrake. Compare drogue parachute (def 2).
- paraheliotropic — (of leaves) turning away from light; sun-avoiding