| 单词 | boom |
| 释义 | boom boom1 —boomingly, adv. /boohm/, v.i. 1. to make a deep, prolonged, resonant sound. 2. to move with a resounding rush or great impetus. 3. to progress, grow, or flourish vigorously, as a business or a city: Her business is booming since she enlarged the store. v.t. 4. to give forth with a booming sound (often fol. by out): The clock boomed out nine. 5. to boost; campaign for vigorously: His followers are booming George for mayor. n. 6. a deep, prolonged, resonant sound. 7. the resonant cry of a bird or animal. 8. a buzzing, humming, or droning, as of a bee or beetle. 9. a rapid increase in price, development, numbers, etc.: a boom in housing construction. 10. a period of rapid economic growth, prosperity, high wages and prices, and relatively full employment. 11. a rise in popularity, as of a political candidate. adj. 12. caused by or characteristic of a boom: boom prices. [1400-50; 1910-15 for def. 10; late ME bombon, bummyn to buzz; c. D bommen, G bummen, orig. imit.] Syn. 3. prosper, thrive, develop. boom2 —boomless, adj. /boohm/, n. 1. Naut. any of various more or less horizontal spars or poles for extending the feet of sails, esp. fore-and-aft sails, for handling cargo, suspending mooring lines alongside a vessel, pushing a vessel away from wharves, etc. 2. Aeron. a. an outrigger used on certain aircraft for connecting the tail surfaces to the fuselage. b. a maneuverable and retractable pipe on a tanker aircraft for refueling another aircraft in flight. c. chord1 (def. 4). 3. a chain, cable, series of connected floating timbers, or the like, serving to obstruct navigation, confine floating timber, etc. 4. the area thus shut off. 5. Mach. a spar or beam projecting from the mast of a derrick for supporting or guiding the weights to be lifted. 6. (on a motion-picture or television stage) a spar or beam on a mobile crane for holding or manipulating a microphone or camera. 7. lower the boom, to take decisive punitive action: The government has lowered the boom on tax evaders. v.t. 8. to extend or position, as a sail (usually fol. by out or off). 9. to manipulate (an object) by or as by means of a crane or derrick. v.i. 10. to sail at full speed. [1635-45; < D: tree, pole, BEAM] |
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