Search Result for "gram-negative": 
Wordnet 3.0

ADJECTIVE (1)

1. (of bacteria) being of or relating to a bacterium that does not retain the violet stain used in Gram's method;


WordNet (r) 3.0 (2006):

Gram-negative adj 1: (of bacteria) being of or relating to a bacterium that does not retain the violet stain used in Gram's method