Pronunciation: (mi-kō'nē-um), [key]
1. the first fecal excretion of a newborn child, composed chiefly of bile, mucus, and epithelial cells.
2. fecal mass released at pupation by the larvae of some insects.
3. the milky sap of the unripe seed pods of the opium poppy; crude opium.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.