evanescent

大学

a. 逐渐消失的, 容易消散的, 短暂的 [医] 易消灭的, 渐消失的, 挥发性的

发音

UK /ɛvəˈnɛs(ə)nt/
UK /iːvə-/
US /ˌɛvəˈnɛsənt/

词形变化

more evanescent 比较级 most evanescent 最高级

教材释义与例句

形容词

容易消散的；逐渐消失的；会凋零的

释义与例句

adj.
  1. 1.

    Disappearing, vanishing.

    消逝

  2. 2.

    Disappearing, vanishing.

    Of an oscillating electric or magnetic field: not propagating as an electromagnetic wave but having its energy spatially concentrated in the vicinity of its source.

    工程 物理
  3. 3.

    Disappearing, vanishing.

    Of a number or value: diminishing to the point of reaching zero as a limit; infinitesimal.

    数学
  4. 4.

    Barely there; almost imperceptible.

  5. 5.

    Ephemeral, fleeting, momentary.

  6. 6.

    Ephemeral, fleeting, momentary.

    Of plant parts: shed after a period.

    生物 植物学

词汇关系

形容词

近义相关 2

temporary impermanent

相关短语

multiple evanescent white dot syndrome

词源

Borrowed from French évanescent (“evanescent”), from Latin ēvānēscēns (“disappearing, vanishing”), present participle of ēvānēscō (“to disappear, vanish; to die out, fade away; to lapse”), from ē- (variant of ex- (prefix meaning ‘away, out’)) + vānēscō (“to vanish”) (from vānus (“empty, vacant, void”), from Proto-Indo-European *h₁weh₂- (“to abandon, leave”)) + -ēscō (suffix forming verbs with the sense ‘to become’)).

来源：wiktionary