involution是什么意思音标:英 ['ɪnvə'lju:ʃən]美 [ˌɪnvə'lu:ʃən]

n. 卷绕, 内卷, 回旋
[医] 退化, 复旧, 内转

n. reduction in size of an organ or part (as in the return of the uterus to normal size after childbirth)
n. a long and intricate and comppcated grammatical construction
n. the action of enfolding something