Search Result for "mycoplasma": 
Wordnet 3.0

NOUN (1)

1. any of a group of small parasitic bacteria that lack cell walls and can survive without oxygen; can cause pneumonia and urinary tract infection; 



WordNet (r) 3.0 (2006):

mycoplasma
    n 1: any of a group of small parasitic bacteria that lack cell
         walls and can survive without oxygen; can cause pneumonia
         and urinary tract infection