tuber

/tjuหbษ™(ษน)/

IPA: /T UW1 B ER0/

noun
  1. 1

    A fleshy, thickened underground stem of a plant, usually containing stored starch, for example a potato or arrowroot.

  2. 2

    A thickened rootstock.

  3. 3

    A rounded, protuberant structure in a human or animal body.

Source: https://en.wiktionary.org/wiki/tuber