Tergum

1 definition found

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

  Tergum \Ter"gum\, n.; pl. {Terga}. [L., the back.] (Zool.)
     (a) The back of an animal.
     (b) The dorsal piece of a somite of an articulate animal.
     (c) One of the dorsal plates of the operculum of a cirriped.
         [1913 Webster]