13-letter words containing r, o, b, c
- myelofibrotic — of, relating to or affected by myelofibrosis
- neurofeedback — The presentation of realtime feedback on brainwave activity, as measured by sensors on the scalp, sometimes offered as a means of therapy.
- newport beach — a city in SW California, SE of Los Angeles.
- nitrobacteria — Plural form of nitrobacterium.
- non-carbonate — a salt or ester of carbonic acid.
- non-obstetric — of or relating to the care and treatment of women in childbirth and during the period before and after delivery.
- non-reducible — capable of being reduced.
- non-revocable — that may be revoked.
- nonaerobiotic — Able to live without oxygen from the atmosphere.
- noncarbonated — Not carbonated; lacking carbonation.
- noncarbonates — Plural form of noncarbonate.
- noncomparable — not comparable
- noncorrodible — (of a metal) not capable of rusting, decaying, or eroding
- nonobservance — absence or lack of observance.
- nonprescribed — Not prescribed.
- nonrecordable — Not recordable.
- nonrecyclable — Not recyclable.
- notary public — a public officer or other person authorized to authenticate contracts, acknowledge deeds, take affidavits, protest bills of exchange, take depositions, etc.
- obiter dictum — an incidental or passing remark, opinion, etc.
- object oberon — Oberon plus classes and methods by H. Moessenboeck & J. Templ, 1989. See Oberon-2.
- 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.
- obstetricians — Plural form of obstetrician.
- obstructively — In an obstructive manner.
- 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.
- office bearer — a person who holds an office, as in a society, company, club, etc; official
- opisthobranch — any gastropod mollusk of the order Opisthobranchia, as the sea slugs, sea butterflies, and sea hares, characterized by a vestigial or absent mantle and shell and two pairs of tentacles.
- 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.
- over-abstract — thought of apart from concrete realities, specific objects, or actual instances: an abstract idea.
- overabundance — an excessive amount or abundance; surfeit: an overabundance of sugar in the diet.
- overbalancing — Present participle of overbalance.
- overexcitable — Excessively excitable.
- overprescribe — to lay down, in writing or otherwise, as a rule or a course of action to be followed; appoint, ordain, or enjoin.
- oversubscribe — to subscribe for more of than is available, expected, or required: The charity drive was oversubscribed by several thousand dollars.
- parabolically — of, relating to, or involving a parable.
- particleboard — a boardlike building material made by compressing sawdust or wood particles with a resin binder
- perboric acid — a hypothetical acid, HBO 3 , known only in the form of its salts.
- phlebographic — relating to phlebography or the X-ray imaging of a vein that has been injected with a dye that is visible on the image taken
- polycarbonate — a synthetic thermoplastic resin, a linear polymer of carbonic acid, used for molded products, films, and nonbreakable windows.
- port colborne — a city in SE Ontario, in S Canada.
- post-cambrian — Geology. noting or pertaining to a period of the Paleozoic Era, occurring from 570 million to 500 million years ago, when algae and marine invertebrates were the predominant form of life.
- postembryonic — occurring after the embryonic phase.
- pre-columbian — of or relating to the Americas before the arrival of Columbus: pre-Columbian art; pre-Columbian Indians.
- prebasic molt — the molt by which most birds replace all of their feathers, usually occurring annually after the breeding season.
- prebiological — of or relating to chemicals or environmental conditions existing before the development of the first living things.
- precombustion — of or relating to the period immediately before combustion
- prefabricator — someone who or an organization that prefabricates
- principal boy — the leading male role in a pantomime, played by a woman
- pro-celebrity — (of a golf tournament, snooker tournament, etc) involving both professional players and celebrities