Clearance

Clearance
Clearance Clear"ance (kl[=e]r"ans), n. 1. The act of clearing; as, to make a thorough clearance. [1913 Webster]

2. A certificate that a ship or vessel has been cleared at the customhouse; permission to sail. [1913 Webster]

Every ship was subject to seizure for want of stamped clearances. --Durke [1913 Webster]

3. Clear or net profit. --Trollope. [1913 Webster]

4. (Mach.) The distance by which one object clears another, as the distance between the piston and cylinder head at the end of a stroke in a steam engine, or the least distance between the point of a cogwheel tooth and the bottom of a space between teeth of a wheel with which it engages. [1913 Webster]

{Clearance space} (Steam engine), the space inclosed in one end of the cylinder, between the valve or valves and the piston, at the beginning of a stroke; waste room. It includes the space caused by the piston's clearance and the space in ports, passageways, etc. Its volume is often expressed as a certain proportion of the volume swept by the piston in a single stroke. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

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  • clearance — s.n. (med.) Raport între concentraţia sanguină a unei substanţe şi eliminarea prin urină. [pron. cliărăns. / < fr., engl. clearance – epurare]. Trimis de LauraGellner, 19.12.2004. Sursa: DN  CLEARANCE CLÍRĂNS/ s. n. raport între concentraţia… …   Dicționar Român

  • clearance — 1560s, action of clearing, from CLEAR (Cf. clear) + ANCE (Cf. ance). Meaning a clear space is from 1788. Meaning approval, permission (esp. to land or take off an aircraft) is from 1944, Amer.Eng.; national security sense recorded from 1948.… …   Etymology dictionary

  • clearance — [n1] permission for activity approval, authorization, consent, endorsement, goahead*, green light*, leave, okay, sanction, sayso*; concept 376 Ant. denial, grounding, refusal, veto clearance [n2] gap above something allowance, assart, defoliated… …   New thesaurus

  • clearance — [klir′əns] n. 1. an act or instance of clearing 2. the clear space or distance between moving objects or mechanical parts, or between a moving object and that which it passes through, over, under, etc. 3. official, esp. governmental,… …   English World dictionary

  • Clearance — Clearance. См. Допуск. (Источник: «Металлы и сплавы. Справочник.» Под редакцией Ю.П. Солнцева; НПО Профессионал , НПО Мир и семья ; Санкт Петербург, 2003 г.) …   Словарь металлургических терминов

  • clearance — index absolution, acquittal, amortization, collection (payment), composition (agreement in bankruptcy), compurgation, concession ( …   Law dictionary

  • clearance — *room, berth, play, elbowroom, leeway, margin …   New Dictionary of Synonyms

  • clearance — ► NOUN 1) the action or an act of clearing or the process of being cleared. 2) official authorization for something to take place. 3) clear space allowed for a thing to move past or under another …   English terms dictionary

  • clearance — clear/clearance Goods are cleared when HM Customs and Excise have accepted a declaration for them and formally released them for import or export. HM Customs & Revenue Glossary * * * clearance clear‧ance [ˈklɪərəns ǁ ˈklɪr ] noun [countable,… …   Financial and business terms

  • clearance — n. act of clearing away 1) slum clearance authorization 2) to give; receive clearance for 3) customs clearance 4) clearance to + inf. (the control tower gave the pilot clearance to land) space between parts 5) valve clearance certification of… …   Combinatory dictionary

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