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clearance - 5 dictionary results

clear⋅ance

[kleer-uhns]
–noun
1. the act of clearing.
2. the distance between two objects; an amount of clear space: The bridge allowed a clearance of 37 feet at mean high water.
3. a formal authorization permitting access to classified information, documents, etc.
4. Also called clearance sale. the disposal of merchandise at reduced prices to make room for new goods: He bought the coat for half price at a clearance.
5. a clear space; a clearing: The house stood in a clearance among the trees.
6. Banking. an exchange of checks and other commercial paper drawn on members of a clearinghouse, usually effected at a daily meeting of the members.
7. Machinery. a space between two moving parts, left to avoid clashing or to permit relatively free motion.
8. the angle between a face of a cutting tool, as a lathe tool, and the work.
9. Nautical.
a. the clearing of a ship at a port.
b. Also called clearance papers. the official papers certifying this.
10. Medicine/Medical. a test of the excretory function of the kidneys based on the volume of blood that is cleared of a specific substance per minute by renal excretion.

Origin:
1555–65; clear + -ance


clearer, noun
clear·ance   (klîr'əns)   
n.  
  1. The act or process of clearing.
  2. A space cleared; a clearing.
    1. The amount of space or distance by which a moving object clears something.
    2. The height or width of a passage: an underpass with a 13-foot clearance.
    3. The removal by the kidneys of a substance from blood plasma.
    4. Renal clearance.
  3. An intervening space or distance allowing free play, as between machine parts.
  4. Permission for an aircraft, ship, or other vehicle to proceed, as after an inspection of equipment or cargo or during certain traffic conditions.
  5. Official certification of blamelessness, trustworthiness, or suitability.
  6. A sale, generally at reduced prices, to dispose of old merchandise.
  7. The passage of checks and other bills of exchange through a clearing-house.
  8. Physiology
    1. The removal by the kidneys of a substance from blood plasma.
    2. Renal clearance.

Clearance

Clear"ance\ (-ans), n. 1. The act of clearing; as, to make a thorough clearance.

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

Every ship was subject to seizure for want of stamped clearances. --Durke

3. Clear or net profit. --Trollope.

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.

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.
Language Translation for : clearance
Spanish: despeje,
German: die Beseitigung,
Japanese: 取り片づけ

Main Entry: clear·ance
Pronunciation: 'klir-&n(t)s
Function: noun
: the volume of blood or plasma that could be freed of a specified constituentin a specified time (usually one minute) by excretion of the constituent into the urine through the kidneys called also renal clearance

clearance clear·ance (klēr'əns)
n.
The removal of a substance from the blood, expressed as the volume of blood or plasma cleared of the substance per unit time.

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