Search Result for "ghrelin": 
Wordnet 3.0

NOUN (1)

1. a gastrointestinal hormone produced by epithelial cells lining the fundus of the stomach; appears to be a stimulant for appetite and feeding, but is also a strong stimulant of growth hormone secretion from the anterior pituitary; 



WordNet (r) 3.0 (2006):

ghrelin
    n 1: a gastrointestinal hormone produced by epithelial cells
         lining the fundus of the stomach; appears to be a stimulant
         for appetite and feeding, but is also a strong stimulant of
         growth hormone secretion from the anterior pituitary