13-letter words containing e, t, i, o, l
- observational — of, relating to, or founded on observation, especially founded on observation rather than experiment.
- obstetrically — (medicine) In terms of obstetrics.
- obstructively — In an obstructive manner.
- occidentalism — Occidental character or characteristics.
- occidentalize — to make Occidental.
- octodecillion — a cardinal number represented in the U.S. by 1 followed by 57 zeros, and in Great Britain by 1 followed by 108 zeros.
- of a lifetime — unique and special
- off the rails — into or in a state of dysfunction or disorder
- oilspot glaze — a brown or black ceramic glaze dotted with silvery spots caused by impurities.
- 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.
- olfactometric — Of or pertaining to olfactometry.
- oligopeptides — Plural form of oligopeptide.
- omnipresently — In an omnipresent manner.
- on reflection — second thoughts
- on the fiddle — If someone is on the fiddle, they get money by doing illegal or dishonest things.
- onomatopoeial — (obsolete, rare) Of or pertaining to onomatopoeia.
- 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.
- operationally — able to function or be used; functional: How soon will the new factory be operational?
- opinionatedly — In an opinionated manner.
- optical bench — an apparatus, as a special table or rigid beam, for the precise positioning of light sources, screens, and optical instruments used for optical and photometric studies, having a ruled bar to which these devices can be attached and along which they can be readily adjusted.
- 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.
- optical mouse — (hardware) Any kind of mouse that uses visible light or infrared to detect changes in its position.
- optical wedge — a wedge-shaped filter whose transmittance decreases from one end to the other: used as an exposure control device in sensitometry.
- 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
- oscillometric — an instrument for measuring oscillations, especially those of the arterial pulse.
- ostensibility — The quality of being ostensible.
- osteomyelitis — an inflammation of the bone and bone marrow, usually caused by bacterial infection.
- osteoplasties — Plural form of osteoplasty.
- ostreiculture — the breeding of oysters
- otherworldish — characterized by otherworldliness
- ottawa euclid — Euclid
- out of kilter — If one thing is out of kilter with another, the first thing does not agree with or fit in with the second.
- outgeneraling — Present participle of outgeneral.