Follicle

Part of speech: noun (n.)

1. A simple podlike pericarp which contains several seeds and opens along the inner or ventral suture, as in the peony, larkspur and milkweed.

2. A small cavity, tubular depression, or sac; as, a hair follicle.

3. A simple gland or glandular cavity; a crypt.

4. A small mass of adenoid tissue; as, a lymphatic follicle.