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13-letter words containing t, o, e, c, r, a

  • obstetricians — Plural form of obstetrician.
  • oceanic crust — the brown, hard outer portion or surface of a loaf or slice of bread (distinguished from crumb).
  • octane number — (of gasoline) a designation of antiknock quality, numerically equal to the percentage of isooctane by volume in a mixture of isooctane and normal heptane that matches the given gasoline in antiknock characteristics.
  • octane-rating — (of gasoline) a designation of antiknock quality, numerically equal to the percentage of isooctane by volume in a mixture of isooctane and normal heptane that matches the given gasoline in antiknock characteristics.
  • octocentenary — pertaining to 800 or a period of 800 years; marking the completion of 800 years.
  • octogenarians — Plural form of octogenarian.
  • off the track — a structure consisting of a pair of parallel lines of rails with their crossties, on which a railroad train, trolley, or the like runs.
  • olfactometers — Plural form of olfactometer.
  • olfactometric — Of or pertaining to olfactometry.
  • on the carpet — a heavy fabric, commonly of wool or nylon, for covering floors.
  • open fracture — compound fracture.
  • optical drive — optical disk drive
  • optical fiber — optical fibre
  • optical fibre — (communications)   (fibre optics, FO, US "fiber", light pipe) A plastic or glass (silicon dioxide) fibre no thicker than a human hair used to transmit information using infra-red or even visible light as the carrier (usually a laser). The light beam is an electromagnetic signal with a frequency in the range of 10^14 to 10^15 Hertz. Optical fibre is less susceptible to external noise than other transmission media, and is cheaper to make than copper wire, but it is much more difficult to connect. Optical fibres are difficult to tamper with (to monitor or inject data in the middle of a connection), making them appropriate for secure communications. The light beams do not escape from the medium because the material used provides total internal reflection. See also FDDI, Optical Carrier n, SONET.
  • orchestra pit — musicians' seating in front of stage
  • orchestra-pit — a group of performers on various musical instruments, including especially stringed instruments of the viol class, clarinets and flutes, cornets and trombones, drums, and cymbals, for playing music, as symphonies, operas, popular music, or other compositions.
  • orchestralist — a person who writes or arranges orchestral music
  • orchestrating — Present participle of orchestrate.
  • orchestration — (uncountable) the arrangement of music for performance by an orchestra.
  • orchestrators — Plural form of orchestrator.
  • organogenetic — Relating to organogenesis.
  • orthocephalic — having a medium or intermediate relation between the height of the skull and the breadth or length.
  • orthoepically — In terms of correct pronunciation.
  • orthopaedical — Pertaining to orthopaedics; characteristic of orthopaedia.
  • orthosilicate — a silicate mineral
  • outreach work — work (done by welfare workers, volunteers, etc) designed to help and encourage disadvantaged members of the community
  • outrecuidance — (archaic) Presumption, arrogance, self-conceit.
  • ovariectomies — Plural form of ovariectomy.
  • ovariectomize — (transitive) To remove the ovaries from.
  • over-abstract — thought of apart from concrete realities, specific objects, or actual instances: an abstract idea.
  • over-analytic — pertaining to or proceeding by analysis (opposed to synthetic).
  • over-cautious — excessively or unnecessarily cautious: Sometimes it doesn't pay to be overcautious in business.
  • over-contract — an agreement between two or more parties for the doing or not doing of something specified.
  • over-educated — to develop the faculties and powers of (a person) by teaching, instruction, or schooling. Synonyms: instruct, school, drill, indoctrinate.
  • over-reactive — tending to react.
  • overacuteness — sharp or severe in effect; intense: acute sorrow; an acute pain.
  • overallocated — Allocated in excess.
  • overcast seam — a hem with long stitches passing successively over the edge
  • overdecorated — Simple past tense and past participle of overdecorate.
  • overeducation — the act or process of imparting or acquiring general knowledge, developing the powers of reasoning and judgment, and generally of preparing oneself or others intellectually for mature life.
  • overexcitable — Excessively excitable.
  • overspeculate — to engage in thought or reflection; meditate (often followed by on, upon, or a clause).
  • oxford accent — the accent associated with Oxford English
  • oystercatcher — any of several long-billed wading birds of the genus Haematopus that have chiefly black-and-white plumage and that feed on oysters, clams, mussels, etc.
  • package store — a store selling sealed bottles or other containers of alcoholic beverages that may only be consumed off the premises.
  • palaeocrystic — consisting of former glacial formation
  • palaeocurrent — an ancient current, esp of water, evidence of which has been preserved in sedimentary rocks as fossilized ripple marks, etc
  • paleotropical — belonging or pertaining to a geographical division comprising the Ethiopian and Oriental regions.
  • pancreatotomy — incision of the pancreas.
  • parthenocarpy — the production of fruit without fertilization of an egg in the ovary.
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