Search Result for "lysosome": 
Wordnet 3.0

NOUN (1)

1. an organelle found in the cytoplasm of most cells (especially in leukocytes and liver and kidney cells); 



WordNet (r) 3.0 (2006):

lysosome
    n 1: an organelle found in the cytoplasm of most cells
         (especially in leukocytes and liver and kidney cells)