D defs.my
Entry 1 sense Webster, 1913

Evanescence

/ĕvˌ-ən-ĕs'-əns/ · Ev·a·nes·cence · IPA /ˌɛv.əˈnɛs.əns/
01 n. The act or state of vanishing away; disappearance; as, the evanescence of vapor, of a dream, of earthly plans or hopes.
  1. 1.
    The act or state of vanishing away; disappearance; as, the evanescence of vapor, of a dream, of earthly plans or hopes.