Webster's English Dictionary

vegetation

veg.e.ta.tion \.vej-*-'ta--sh*n\ \-shn*l, -sh*n-*l\ n 1: the act or rpocess 
   of vegetating  2: inert existence  3: plant life or total plant cover (as 
   of an area)  4: an abnormal outgrowth upon a body part  - veg.e.ta.tion.al 
   aj