Meaning of microcapsule

mi•cro•cap•sule

Pronunciation: (mī'krō-kap"sul, -sl, -syl), [key]
— n. Chem.
  1. a tiny capsule, 20–150 microns in diameter, used for slow-release application of drugs, pesticides, flavors, etc.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.