tuber
PLANT'S UNDERGROUND STORAGE ORGAN FORMED BY THE SWELLING OF AN UNDERGROUND STEM WHICH PRODUCES BUDS AND STORES PHOTOSYNTHATE METABOLITES/NUTRIENTS, FORMING A SEASONAL PERENNATING ORGAN, E.G. A POTATO
Tuberous root; Tubers; Tuberous; Culture of tubers; Root tuber; Stem tuber; Storage root; Tuberous crops
¦ noun
1. a much thickened underground part of a stem or rhizome, e.g. in the potato, serving as a food reserve and bearing buds from which new plants arise.
a thickened fleshy root, e.g. of the dahlia.
2. Anatomy a rounded swelling or protuberant participle
Origin
C17: from L., lit. 'hump, swelling'.