spiral

英 ['spaɪr(ə)l] 美 ['spaɪrəl]

解释

n. 螺旋；旋涡；螺旋形之物
adj. 螺旋形的；盘旋的
vt. 使成螺旋形；使作螺旋形上升
vi. 盘旋；成螺旋形；螺旋形上升（过去式spiraled/spiralled，过去分词spiraled/spiralled，现在分词spiraling/spiralling，第三人称单数spirals，副词spirally）

※ 提供单词"spiral"的中文意思、发音示范及音标对照，中英文词源、例句和用法等。

spiral 螺旋的，螺旋式的

来自拉丁语 spipralis,旋转的，螺旋的，来自 spira,线圈，绕圈，来自 PIE*sper,转动，旋转，可能来自 PIE*spen,弯，转，纺织，词源同 spider,spin.

spiral: spiral: [16] Spiral comes via French spiral from medieval Latin spīrālis ‘coiled’, a derivative of Latin spīra. This in turn went back to Greek speira ‘coil’. English also acquired the noun, as spire [16], which is used for the ‘tip of a spiral shell’. It is not the same word as the spire of a church [OE], which originally meant ‘stalk, stem’, and may go back ultimately to the base *spī- (source of English spike ‘pointed flower head’ and spine). The spiraea [17] is etymologically the ‘coiled’ plant; and spiraea in turn was used to form the term aspirin.
=> aspirin, spiraea
spiral (adj.): 1550s, from Middle French spiral (16c.), from Medieval Latin spiralis "winding around a fixed center, coiling" (mid-13c.), from Latin spira "a coil, fold, twist, spiral," from Greek speira "a winding, a coil, twist, wreath, anything wound or coiled," from PIE *sper-ya-, from base *sper- (2) "to turn, twist." Related: Spirally. Spiral galaxy first attested 1913.
spiral (v.): 1726 (implied in spiraled), transitive, from spiral (n.). Intransitive use by 1834. Transferred and figurative sense by 1922. Related: Spiraling.
spiral (n.): 1650s, from spiral (adj.). U.S. football sense is from 1896. Figurative sense of "progressive movement in one direction" is by 1897. Of books, spiral-bound (adj.) is from 1937.

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