vanishing

a. & n. from vanish, v.

a fraction which reduces to the form 0/0 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.

the intersection of the parallel of any original plane and the picture; one of the lines converging to the vanishing point.

the point to which all parallel lines in the same plane tend in the representation.

stress of voice upon the closing portion of a syllable.

that vanishes

Present participle of vanish.

a sudden or mysterious disappearance

a sudden disappearance from sight