| 单词 | clearance |
| 释义 | clearance —clearer, n. /klear"euhns/, 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 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. 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 clearance papers. 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. [1555-65; CLEAR + -ANCE] |
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