Definify.com

Webster 1913 Edition


Clearance

Clear′ance

(klēr′ans)
,
Noun.
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.

Webster 1828 Edition


Clearance

CLEARANCE

,
Noun.
A certificate that a ship or vessel has been cleared at the custom house; permission to sail.

Definition 2024


clearance

clearance

English

Noun

clearance (countable and uncountable, plural clearances)

  1. The act of clearing or something (such as a space) cleared
  2. The distance between two moving objects, especially between parts of a machine
  3. The height or width of a tunnel, bridge or other passage, or the distance between a vehicle and the walls or roof of such passage; a gap, headroom.
  4. A permission for a vehicle to proceed, or for a person to travel.
    The plane got clearance from air traffic control, and we were off.
    He got clearance to travel to America, even though he had previous links to terrorists
  5. A permission to have access to sensitive or secret documents or other information
  6. A sale of merchandise at a reduced price.
  7. (banking, finance) The settlement of transactions involving securities or means of payment such as checks by means of a clearing house.
  8. (medicine) The removal of harmful substances from the blood; renal clearance.
  9. (sports, billiards, snooker, pool) The act of potting all the remaining balls on a table at one visit.
  10. (soccer) The act of kicking a ball away from the goal one is defending.
    • 2010 December 29, Chris Whyatt, “Chelsea 1 - 0 Bolton”, in BBC:
      Bolton were then just inches from taking the lead, but the dangerous-looking Taylor drilled just wide after picking up a loose ball following Jose Bosingwa's poor attempted clearance.
  11. (chess) Removal of pieces from a rank, file or diagonal so that a bishop, rook or queen is free to move along it.
  12. Clear or net profit.
    (Can we find and add a quotation of Trollope to this entry?)

Translations


Italian

Etymology

English

Noun

clearance f (invariable)

  1. (medicine) clearance

Portuguese

Noun

clearance m (plural clearances)

  1. (medicine) clearance (removal of harmful substances from the blood)