Search Result for "hypericism": 
Wordnet 3.0

NOUN (1)

1. a severe dermatitis of herbivorous domestic animals attributable to photosensitivity from eating Saint John's wort; 



WordNet (r) 3.0 (2006):

hypericism
    n 1: a severe dermatitis of herbivorous domestic animals
         attributable to photosensitivity from eating Saint John's
         wort