1. (n.) A small, usually hard, tumor on the skin formed by enlargement of its vascular papillae, and thickening of the epidermis which covers them.

2. (n.) An excrescence or protuberance more or less resembling a true wart; specifically (Bot.), a glandular excrescence or hardened protuberance on plants.

Lilliputian Tom Thumb bantam banty benign tumor bilge birthmark blackhead blain bleb blemish blister blob boss bow brownie bubble bulb bulge bulla bump bunch burl button cahot callosity callus cancer carcinoma check chine chit cicatrix clump comedo condyle convex corn crack crater craze cyst defacement defect deformation deformity diminutive disfiguration disfigurement distortion dowel dwarf ear elf excrescence fault featherweight fingerling flange flap flaw freckle fungosity fungus gall gnarl gnome growth handle hemangioma hickey hill homunculus hump hunch intumescence jog joggle keloid kink knob knot knur knurl lentigo lightweight lip loop lump malignant growth manikin metastatic tumor midge midget milium mini minikin minnow minny mole morbid growth mountain mouse needle scar neoplasm nevus nonmalignant tumor nub nubbin nubble outgrowth papilloma peewee peg pimple pip-squeak pit pock pockmark pony port-wine mark port-wine stain proud flesh pustule pygmy rib ridge rift ring runt sarcoma scab scar scratch sebaceous cyst shoulder shrimp slip small fry snip snippet spine split strawberry mark stud sty style tab tit track tubercle tubercule tumor twist verruca vesicle wale warp weal welt wen whitehead wisp