Phys. rare. [f. BLADDER sb. + -ET.] A small bladder; a vesicle.
1615. Crooke, Body of Man, 200. Many vesicles or bladderets.
1656. Dugard, Gate Lat. Unl., § 230. 63. The longish bladderet of the gall.
1883. W. Jolly, Life J. Duncan, xvii. 172. It is held down by the utricles or bladderets that give it its name, which are then filled with heavy mucus.