| 单词 | ceiling |
| 释义 | Word Frequency ceiling(ˈsiːlɪŋ) noun 1. the inner upper surface of a room 2. a. an upper limit, such as one set by regulation on prices or wages b. (as modifier) ceiling prices 3. the upper altitude to which an aircraft can climb measured under specified conditions See also service ceiling, absolute ceiling 4. meteorology the highest level in the atmosphere from which the earth's surface is visible at a particular time, usually the base of a cloud layer 5. a wooden or metal surface fixed to the interior frames of a vessel for rigidity Word origin C14: of uncertain origin |
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