microcapsule

[mahy-kroh-kap-suh l, -sool, -syool]

noun Chemistry.

a tiny capsule, 20–150 microns in diameter, used for slow-release application of drugs, pesticides, flavors, etc.

Origin of microcapsule

First recorded in 1960–65; micro- + capsule
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019