21-letter words containing w, e, l, k, n
- anton van leeuwenhoek — Anton van [ahn-tawn vahn] /ˈɑn tɔn vɑn/ (Show IPA), 1632–1723, Dutch naturalist and microscopist.
- be in black and white — You say that something is in black and white when it has been written or printed, and not just said.
- blackburn with darwen — a unitary authority in NW England, in Lancashire. Pop: 139 800 (2003 est). Area: 137 sq km (53 sq miles)
- caroline of brunswick — 1768–1821, wife of George IV of the United Kingdom: tried for adultery (1820)
- devil's walking-stick — Hercules'-club (sense 1)
- devil's-walking-stick — Hercules-club (def 2).
- go down like ninepins — (of each of a group of people) to become ill very easily and quickly
- jobseeker's allowance — (in Britain) a National Insurance or social security payment for unemployed people; replaced unemployment benefit in 1996
- knowledge engineering — the practical application of developments in the field of computer science concerned with artificial intelligence.
- luck was on sb's side — If you say that luck was on someone's side, you mean that they succeeded in something by chance as well as by their own efforts or ability.
- madagascar periwinkle — a plant, Catharanthus roseus (or Vinca rosea), cultivated for its glossy foliage and pink or white flowers.
- network filing system — (spelling) Misnomer for Network File System.
- network time protocol — (NTP) A protocol built on top of TCP/IP that assures accurate local timekeeping with reference to radio, atomic or other clocks located on the Internet. This protocol is capable of synchronizing distributed clocks within milliseconds over long time periods. It is defined in STD 12, RFC 1119.
- redwood national park — a national park in N California: redwood forest with some of the world's tallest trees. 172 sq. mi. (445 sq. km).
- safe in the knowledge — If you do something safe in the knowledge that something else is the case, you do the first thing confidently because you are sure of the second thing.
- scarlet monkey flower — any of various plants belonging to the genus Mimulus, of the figwort family, as M. cardinalis (scarlet monkey flower) having spotted flowers that resemble a face.
- take one's (own) life — to commit suicide
- to take the long view — If you take the long view, you consider what is likely to happen in the future over a long period, rather than thinking only about things that are going to happen soon.
- venus's flower basket — a glass sponge of the genus Euplectella, inhabiting deep waters off the Philippines and Japan, having a cylindrical skeleton formed of an intricate latticework of siliceous spicules.
- weak head normal form — (reduction, theory) (WHNF) A lambda expression is in weak head normal form (WHNF) if it is a head normal form (HNF) or any lambda abstraction. I.e. the top level is not a redex. The term was coined by Simon Peyton Jones to make explicit the difference between head normal form (HNF) and what graph reduction systems produce in practice. A lambda abstraction with a reducible body, e.g. \ x . ((\ y . y+x) 2) is in WHNF but not HNF. To reduce this expression to HNF would require reduction of the lambda body: (\ y . y+x) 2 --> 2+x Reduction to WHNF avoids the name capture problem with its need for alpha conversion of an inner lambda abstraction and so is preferred in practical graph reduction systems. The same principle is often used in strict languages such as Scheme to provide call-by-name evaluation by wrapping an expression in a lambda abstraction with no arguments: D = delay E = \ () . E The value of the expression is obtained by applying it to the empty argument list:
- whistling in the dark — If you say that someone is whistling in the dark, you mean that they are trying to remain brave and convince themselves that the situation is not as bad as it seems.
- white-knuckle paddler — an inexpert and timid canoeist.
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