Wordnet 3.0
NOUN (1)
1. 
 a sustained phenomenon or one marked by gradual changes through a series of states; 
- Example: "events now in process"- Example: "the process of calcification begins later for boys than for girls"[syn: process, physical process]
WordNet (r) 3.0 (2006):
physical process
    n 1: a sustained phenomenon or one marked by gradual changes
         through a series of states; "events now in process"; "the
         process of calcification begins later for boys than for
         girls" [syn: process, physical process]