Antrum

2 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Antrum \An"trum\, n.; pl. {Antra}. [L., fr. Gr. ?.]
     A cavern or cavity, esp. an anatomical cavity or sinus.
     --Huxley.
     [1913 Webster]

From WordNet (r) 2.0 [wn]:



  antrum
       n : a natural cavity or hollow in a bone
       [also: {antra} (pl)]