perilla definition by American Heritage Dictionary
- An annual Asian plant (Perilla frutescens) having opposite leaves, a bell-shaped calyx, and flowers with a short, white, tubular corolla. It is widely cultivated as an ornamental and for its oily seeds.
- The oil from the seeds of this plant, widely used in the manufacture of paint, varnish, and artificial leather and as a substitute for linseed oil.
Origin: New Latin, genus name.