\Cor*pus"cu*lar\ (k?r-p?s"k?-l?r), a. [Cf. F.
corpusculaire.]
Pertaining to, or composed of, corpuscles, or small
particles.
{Corpuscular philosophy}, that which attempts to account for
   the phenomena of nature, by the motion, figure, rest,
   position, etc., of the minute particles of matter.
{Corpuscular theory} (Opt.), the theory enunciated by Sir
   Isaac Newton, that light consists in the emission and
   rapid progression of minute particles or corpuscles. The
   theory is now generally rejected, and supplanted by the
   undulatory theory.