单词 | involution |
释义 | involution /in'veuh looh"sheuhn/, n. 1. an act or instance of involving or entangling; involvement. 2. the state of being involved. 3. something complicated. 4. Bot. , Zool. a. a rolling up or folding in upon itself. b. a part so formed. 5. Biol. retrograde development; degeneration. 6. Physiol. the regressive changes in the body occurring with old age. 7. Gram. a complex construction in which the subject is separated from its predicate by intervening clauses or phrases. 8. Math. a function that is its own inverse. [1605-15; < ML involution- (s. of involutio). See INVOLUTE, -ION] |
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