| Vesicle 1. (n.) A bladder like vessel; a membranous cavity; a cyst; a cell. 2. (n.) A small bladder like body in the substance of vegetable, or upon the surface of a leaf. 3. (n.) A small, and more or less circular, elevation of the cuticle, containing a clear watery fluid. 4. (n.) A cavity or sac, especially one filled with fluid; as, the umbilical vesicle. 5. (n.) A small convex hollow prominence on the surface of a shell or a coral. 6. (n.) A small cavity, nearly spherical in form, and usually of the size of a pea or smaller, such as are common in some volcanic rocks. They are produced by the liberation of watery vapor in the molten mass. Thesaurus Entries air bubble, balloon, bilge, birthmark, blackhead, bladder, blain, bleb, blemish, blister, blob, blood blister, boss, bow, bubble, bulb, bulge, bulla, bump, bunch, burl, button, cahot, check, chine, cicatrix, clump, comedo, condyle, convex, crack, crater, craze, defacement, defect, deformation, deformity, disfiguration, disfigurement, distortion, dowel, ear, fault, fever blister, flange, flap, flaw, freckle, gall, globule, gnarl, handle, hemangioma, hickey, hill, hump, hunch, jog, joggle, keloid, kink, knob, knot, knur, knurl, lentigo, lip, loop, lump, milium, mole, mountain, needle scar, nevus, nub, nubbin, nubble, papilloma, peg, pimple, pit, pock, pockmark, port-wine mark, port-wine stain, pustule, rib, ridge, rift, ring, scab, scar, scratch, sebaceous cyst, shoulder, soap bubble, spine, split, strawberry mark, stud, sty, style, tab, track, tubercle, tubercule, twist, verruca, wale, warp, wart, weal, welt, wen, whitehead |