| 单词 | avalanche |
| 释义 | avalanche /av"euh lanch', -lahnch'/, n. , v. , avalanched, avalanching. n. 1. a large mass of snow, ice, etc., detached from a mountain slope and sliding or falling suddenly downward. 2. anything like an avalanche in suddenness and overwhelming quantity: an avalanche of misfortunes; an avalanche of fan mail. 3. Also called Townsend avalanche. Physics, Chem. a cumulative ionization process in which the ions and electrons of one generation undergo collisions that produce a greater number of ions and electrons in succeeding generations. v.i. 4. to come down in, or like, an avalanche. v.t. 5. to overwhelm with an extremely large amount of anything; swamp. [1755-65; < F < dial. (Savoy) avalantse, alter. (by assoc. with avaler to descend rapidly) of laventse < pre-L (perh. Ligurian) *lavanca, or reshaping of LL labina landslide (deriv. of L labi to slide) with a pre-L suffix -anca] |
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