名詞 circumvolution:

1. the act of turning or winding or folding around a central axis

cir.cum.vo.lu.tion

n.（名詞）
An act of turning, coiling, or folding about a center, a core, or an axis.
轉(zhuǎn)動，旋轉(zhuǎn)：相對一個中心、核心或軸的轉(zhuǎn)動、卷纏或折疊的動作
A single turn, coil, or fold; a convolution.
一次轉(zhuǎn)動、卷纏或折疊；回旋

來源：
Middle English circumvolucioun
中古英語 circumvolucioun
from Medieval Latin circumvolôtiô circumvolôtiôn-
源自 中世紀拉丁語 circumvolôtiô circumvolôtiôn-
from Latin circumvolôtus [past participle of] circumvolvere [to roll around] * see circumvolve
源自 拉丁語 circumvolôtus [] circumvolvere的過去分詞 [轉(zhuǎn)動] *參見 circumvolve