13-letter words containing f, t
- 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.
- olfactologist — a medical specialist in the sense of smell
- olfactometers — Plural form of olfactometer.
- olfactometric — Of or pertaining to olfactometry.
- on account of — an oral or written description of particular events or situations; narrative: an account of the meetings; an account of the trip.
- on one's feet — a plural of foot.
- on reflection — second thoughts
- on the eve of — the evening before
- on the fiddle — If someone is on the fiddle, they get money by doing illegal or dishonest things.
- on-off switch — electrical or electronic device: control knob
- one's forties — the ages between 40 and 49
- one-room flat — a studio flat in which the bedroom, sitting-room and kitchen are all one-room
- onto function — Mathematics. a function from one set to a second set, the range of which is the entire second set.
- opacification — to cause to become opaque.
- open fracture — compound fracture.
- oprahfication — the perceived increase in people’s desire to discuss their emotions or personal problems, attributed to the influence of confessional television programmes
- 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 flint — an optical glass of high dispersion and high refractive index containing lead oxide. They are used in the manufacture of lenses, artificial gems, and cut glass
- orate fratres — the call to prayer, addressed by the celebrant of the Mass to the people just before the Secret.
- orbitofrontal — Located in the frontal lobes above the orbits of the eyes.
- orifice meter — a plate having a central hole that is placed across the flow of a liquid, usually between flanges in a pipeline. The pressure difference generated by the flow velocity through the hole enables the flow quantity to be measured
- ossifications — Plural form of ossification.
- osteofibrosis — loss of calcium from the bones, causing them to become fragile
- otto of roses — rose oil.
- out of action — If someone or something is out of action, they are injured or damaged and cannot work or be used.
- out of bounds — Sports. being beyond or passing the limits or boundaries of a field, course, etc., marking the area within which the ball, puck, or the like is legally in play.
- out of breath — the air inhaled and exhaled in respiration.
- out of danger — no longer at risk
- out of humour — in a bad mood
- 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.
- out of office — (of a government) out of power
- out of pocket — small enough or suitable for carrying in the pocket: a pocket watch.
- out of season — one of the four periods of the year (spring, summer, autumn, and winter), beginning astronomically at an equinox or solstice, but geographically at different dates in different climates.
- out of square — a rectangle having all four sides of equal length.
- out-of-bounds — Sports. being beyond or passing the limits or boundaries of a field, course, etc., marking the area within which the ball, puck, or the like is legally in play.
- out-of-pocket — paid out in cash or from one's own financial resources and sometimes reimbursed: My out-of-pocket travel expenses included taking business clients to dinner.
- out-of-stater — a visitor from another state of the U.S.: Many out-of-staters come to our summer music festival.
- out-of-towner — a visitor from another town or city: The World's Fair brought many out-of-towners to New Orleans.
- out-performed — to surpass in excellence of performance; do better than: a new engine that outperforms the competition; a stock that outperformed all others.
- outdo oneself — to do something better than one ever did before or thought one could do
- outperformers — Plural form of outperformer.
- outperforming — Present participle of outperform.
- over-identify — to recognize or establish as being a particular person or thing; verify the identity of: to identify handwriting; to identify the bearer of a check.
- overconfident — too confident.
- overfertilize — to apply too much fertilizer to
- overinflation — Economics. a persistent, substantial rise in the general level of prices related to an increase in the volume of money and resulting in the loss of value of currency (opposed to deflation).
- owl butterfly — any of several South American nymphalid butterflies of the genus Caligo, especially C. eurylochus, having a spot like an owl's eye on each hind wing.
- oxford accent — the accent associated with Oxford English
- oxford theory — the theory attributing the authorship of Shakespeare's plays to Edward de Vere, Earl of Oxford, 1550–1604.