Search Result for "haversian canal":
Wordnet 3.0

NOUN (1)

1. any of the many tiny canals that contain blood vessels and connective tissue and that form a network in bone; 



WordNet (r) 3.0 (2006):

Haversian canal
    n 1: any of the many tiny canals that contain blood vessels and
         connective tissue and that form a network in bone