wart Meaning, Definition & Usage

  1. noun any small rounded protuberance (as on certain plants or animals)
  2. noun an imperfection in someone or something that is suggestive of a wart (especially in smallness or unattractiveness)
  3. noun (pathology) a firm abnormal elevated blemish on the skin; caused by a virus
    verruca.

WordNet

Wart noun
Etymology
OE. werte, AS. wearte; akin to D. wrat, G. warze, OHG. warza, Icel. varta, Sw. vårta, Dan. vorte; perh. orig., a growth, and akin to E. wort; or cf. L. verruca wart.
Definitions
  1. (Med.) A small, usually hard, tumor on the skin formed by enlargement of its vascular papillæ, and thickening of the epidermis which covers them.
  2. An excrescence or protuberance more or less resembling a true wart; specifically (Bot.), a glandular excrescence or hardened protuberance on plants.

Webster 1913