13-letter words containing l, o, b, e, f, i
- oeil-de-boeuf — a comparatively small round or oval window, as in a frieze.
- 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.
- plebification — the act of making popular or vulgar
- public office — position in government
- reformability — the extent to which something or someone is reformable; the capability or susceptibility to reform
- reinforceable — capable of being reinforced
- retrofittable — to modify equipment (in airplanes, automobiles, a factory, etc.) that is already in service using parts developed or made available after the time of original manufacture.
- self-doubting — lacking in confidence
- self-oblivion — the state of being completely forgotten or unknown: a former movie star now in oblivion.
- umbelliferous — bearing an umbel or umbels.
- unblindfolded — not blindfolded
- unfashionable — observant of or conforming to the fashion; stylish: a fashionable young woman.