13-letter words containing r, e, l, a, t, o
- north sea oil — oil extracted from deposits beneath the North Sea
- northallerton — a market town in N England, administrative centre of North Yorkshire. Pop: 15 517 (2001)
- northeasterly — of or located in the northeast.
- objurgatively — In an objurgative or reproving manner.
- observability — capable of being or liable to be observed; noticeable; visible; discernible: an observable change in attitude.
- observational — of, relating to, or founded on observation, especially founded on observation rather than experiment.
- 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.
- of all others — above all others
- off the rails — into or in a state of dysfunction or disorder
- old favourite — If you refer to something as an old favourite, you mean that it has been in existence for a long time and everyone knows it or likes it.
- olfactometers — Plural form of olfactometer.
- olfactometric — Of or pertaining to olfactometry.
- on the razzle — out enjoying oneself or celebrating, esp while drinking freely
- one-room flat — a studio flat in which the bedroom, sitting-room and kitchen are all one-room
- open interval — (mathematics) A type of interval (range of numbers) that does not include either of its endpoints. For example, when mixing red and blue paint, the proportion of red lies in the interval 0% to 100% but can't be exactly 0% or 100% or it wouldn't be a mixture.
- openheartedly — Alt form open-heartedly.
- operationally — able to function or be used; functional: How soon will the new factory be operational?
- 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.
- ora et labora — pray and work
- orbital index — the ratio of the maximum breadth to the maximum height of the orbital cavity multiplied by 100.
- orchestralist — a person who writes or arranges orchestral music
- organ whistle — a steam or air whistle in which the jet is forced up against the thin edge of a pipe closed at the top.
- orientalizing — Present participle of orientalize.
- orientational — Of or pertaining to orientation.
- originalities — Plural form of originality.
- originatively — in an originative manner
- ornamentalism — the desire or tendency to feature ornament in the design of buildings, interiors, furnishings, etc.
- ornamentalist — A person who ornaments.
- ornamentality — used or grown for ornament: ornamental plants.
- orthocephalic — having a medium or intermediate relation between the height of the skull and the breadth or length.
- orthoepically — In terms of correct pronunciation.
- orthogonalise — to make (vectors, functions, etc.) orthogonal.
- orthogonalize — to make (vectors, functions, etc.) orthogonal.
- orthopaedical — Pertaining to orthopaedics; characteristic of orthopaedia.
- orthosilicate — a silicate mineral
- osmoregulator — Any organism that practices osmoregulation.
- outgeneraling — Present participle of outgeneral.
- outgeneralled — Simple past tense and past participle of outgeneral.
- outlaw regime — a dangerously unpredictable political regime, as of a country, state, etc, which disregards international law or diplomacy
- outlaw strike — wildcat strike.
- over-analytic — pertaining to or proceeding by analysis (opposed to synthetic).
- over-detailed — having many details: a detailed problem.
- over-populate — to fill with an excessive number of people, straining available resources and facilities: Expanding industry has overpopulated the western suburbs.
- over-rational — agreeable to reason; reasonable; sensible: a rational plan for economic development.
- overallocated — Allocated in excess.
- overallotment — (finance) A greenshoe option.
- overelaborate — excessively or fussily elaborate, ornate, detailed, etc.