Noah Webster
Follicle
FOL'LICLE, noun [Latin folliculus, from follis, a bag or bellows.]
1. In botany, a univalvular pericarp; a seed vessel opening on one side longitudinally, and having the seeds loose in it.
2. An air bag; a vessel distended with air; as at the root in Utricularia, and on the leaves in Aldrovanda.
3. A little bag, in animal bodies; a gland; a folding; a cavity.