Wordnet 3.0
ADJECTIVE (1)
1. 
 capable of being raised; 
- Example: "the roadster had a raisable sunroof"[syn: raisable, raiseable]
WordNet (r) 3.0 (2006):
raiseable
    adj 1: capable of being raised; "the roadster had a raisable
           sunroof" [syn: raisable, raiseable]