Search Result for "progeria": 
Wordnet 3.0

NOUN (1)

1. a rare abnormality marked by premature aging (grey hair and wrinkled skin and stooped posture) in a child; 



WordNet (r) 3.0 (2006):

progeria
    n 1: a rare abnormality marked by premature aging (grey hair and
         wrinkled skin and stooped posture) in a child