Dictionary![]() ![]() clear•ancePronunciation: (klēr'uns), [key] —n. 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 clear'ance 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. Mach.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. Naut. a. the clearing of a ship at a port. b. Also called clear'ance pa"pers. the official papers certifying this. 10. Med.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. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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