Cite
 

Meaning of upgrowth

up•growth

Pronunciation: (up'grōth"), [key]
— n.
  1. the process of growing up; development: the upgrowth of nuclear science.
  2. something that grows or has grown in an upward direction: Part of the pituitary gland is an upgrowth of the roof of the mouth.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.