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13-letter words containing c, o, r, a, l

  • north channel — a strait between SW Scotland and NE Ireland. 14 miles (23 km) wide at the narrowest point.
  • notary public — a public officer or other person authorized to authenticate contracts, acknowledge deeds, take affidavits, protest bills of exchange, take depositions, etc.
  • nuclear force — strong interaction
  • nuclear power — power derived from nuclear energy.
  • numerological — Of, pertaining to, or based on numerology.
  • obstacle race — a foot race in which the contestants are prevented in a specific way from covering the full course at top speed, as by having hurdles to jump, sacks enclosing the legs, or potatoes to pick up.
  • obstetrically — (medicine) In terms of obstetrics.
  • ochlocratical — Pertaining to ochlocracy.
  • old provencal — the Provençal language as found in documents from the 11th to the 16th centuries. Abbreviation: OPr.
  • olfactometers — Plural form of olfactometer.
  • olfactometric — Of or pertaining to olfactometry.
  • omnicorporeal — Comprehending or including all bodies; embracing all substance.
  • optical crown — an optical glass of low dispersion and relatively low refractive index. It is used in the construction of lenses
  • 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.
  • oraculousness — the state of being oraculous
  • orchard valve — an alfalfa valve of lesser diameter than the pipe it closes.
  • orchestralist — a person who writes or arranges orchestral music
  • orchid family — the plant family Orchidaceae, characterized by terrestrial or epiphytic herbaceous plants having simple, parallel-veined, usually alternate leaves, complex and often large and showy flowers pollinated primarily by insects, and fruit in the form of a capsule containing numerous minute seeds, and including calypso, fringed orchis, lady's-slipper, pogonia, rattlesnake plantain, vanilla, as well as numerous tropical orchids such as those of the genera Cattleya, Cymbidium, Dendrobium, Phalaenopsis, and Vanda.
  • ordinal scale — a scale on which data is shown simply in order of magnitude since there is no standard of measurement of differences: for instance, a squash ladder is an ordinal scale since one can say only that one person is better than another, but not by how much
  • organosilicon — pertaining to or noting an organic compound containing silicon, especially where attached directly to a carbon atom.
  • orgiastically — In an orgiastic fashion.
  • orismological — relating to orismology
  • orsellic acid — an acid found in lichens
  • 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
  • oscillographs — Plural form of oscillograph.
  • oscillography — a device for recording the wave-forms of changing currents, voltages, or any other quantity that can be translated into electric energy, as sound waves.
  • over-analytic — pertaining to or proceeding by analysis (opposed to synthetic).
  • over-reliance — confident or trustful dependence.
  • overallocated — Allocated in excess.
  • overbalancing — Present participle of overbalance.
  • overexcitable — Excessively excitable.
  • oversocialize — to make social; make fit for life in companionship with others.
  • overspeculate — to engage in thought or reflection; meditate (often followed by on, upon, or a clause).
  • 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.
  • parabolically — of, relating to, or involving a parable.
  • paradoxically — having the nature of a paradox; self-contradictory.
  • parencephalon — a cerebral hemisphere
  • parti-colored — having different colors in different areas or patches; variegated: a parti-colored dress.
  • particleboard — a boardlike building material made by compressing sawdust or wood particles with a resin binder
  • partly cloudy — sky: not constantly clear
  • party-colored — having different colors in different areas or patches; variegated: a parti-colored dress.
  • pastoral care — help with personal needs and problems given by a teacher
  • patrifocality — the system or fact of being patrifocal
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