vanishing
 滅點


 Van·ish v. i. [imp. & p. p. Vanished p. pr. & vb. n. Vanishing.]
 1. To pass from a visible to an invisible state; to go out of sight; to disappear; to fade; as, vapor vanishes from the sight by being dissipated; a ship vanishes from the sight of spectators on land.
    The horse vanished . . . out of sight.   --Chaucer.
    Go; vanish into air; away!   --Shak.
    The champions vanished from their posts with the speed of lightning.   --Sir W. Scott.
    Gliding from the twilight past to vanish among realities.   --Hawthorne.
 2. To be annihilated or lost; to pass away. “All these delights will vanish.”


 Van·ish·ing a. & n. from Vanish, v.
 Vanishing fraction Math., a fraction which reduces to the form for a particular value of the variable which enters it, usually in consequence of the existence of a common factor in both terms of the fraction, which factor becomes 0 for this particular value of the variable. --Math. Dict.
 Vanishing line Persp., the intersection of the parallel of any original plane and the picture; one of the lines converging to the vanishing point.
 Vanishing point Persp., the point to which all parallel lines in the same plane tend in the representation. --Gwilt.
 Vanishing stress Phon., stress of voice upon the closing portion of a syllable. --Rush.

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From: WordNet (r) 2.0

 vanishing
      adj : quickly going away and passing out of sight; "all I saw was
            his vanishing back" [syn: disappearing]
      n 1: a sudden or mysterious disappearance
      2: suddenly disappearing from sight