disappearance

n.

消失，不见；消散；失踪；出走，一去不返

复数：disappearances

1. Scientists try to explain their disappearance.
   科学家试着解释它们消失的原因。
2. His disappearance is being looked into by the police.
   他失踪一事警方正在调查。
3. Her disappearance gave rise to the wildest rumours.
   她失踪一事引起了各种流言蜚语。
4. She could find no plausible explanation for its disappearance.
   她无法解释清楚何以不翼而飞。

Carcass disappearance and estimation of mortality in a simulated die-off of small birds.
Observation of electron-antineutrino disappearance at Daya Bay.
Onset and disappearance of gastrointestinal symptoms and functional gastrointestinal disorders
Accelerated disappearance of ovarian follicles in mid-life: implications for forecasting menopause
Comment on "Observation of electron-antineutrino disappearance at Daya Bay"
Observation of reactor electron antineutrinos disappearance in the RENO experiment.
First results from KamLAND: evidence for reactor antineutrino disappearance.
Time course of appearance and disappearance of human mast cell tryptase in the circulation after anaphylaxis.
First Results from KamLAND: Evidence for Reactor Anti-Neutrino Disappearance
Hypothesis Concerning the Causes of the Disappearance of Boreal Toads from the Mountains of Colorado