Definitions

1. noun

A fragrant dried root of the iris plant, used in perfumes and potpourri.

“The old-fashioned perfume contained orris and lavender oils.”

2. noun

A type of iris, Iris pallida, native to Europe and western Asia.

“The orris plant is a perennial with beautiful purple flowers.”

3. adjective

Relating to orris root or the iris plant.

“orris-root perfume is a classic fragrance.”