[L., dim. barba beard.]
1. A small beard; see quot. ? Obs.
1688. R. Holme, Armoury, II. xvii. 392. The Barbula or pick-a-divant, or the little tuft of hair just under the middle of the lower Lip.
2. The inner row of fringes or teeth in the peristome of such mosses as Tortula. Treas. Bot., 1866.