Wordnet 3.0
NOUN (1)
1. 
 any of a group of enzymes (trade name Lactaid) that hydrolyze lactose to glucose and galactose; 
[syn: lactase, Lactaid]
WordNet (r) 3.0 (2006):
Lactaid
    n 1: any of a group of enzymes (trade name Lactaid) that
         hydrolyze lactose to glucose and galactose [syn: lactase,
         Lactaid]