Peritreme

1 definition found

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

  Peritreme \Per"i*treme\, n. [Pref. peri- + Gr. ? a hole.]
     (Zool.)
     (a) That part of the integument of an insect which surrounds
         the spiracles.
     (b) The edge of the aperture of a univalve shell.
         [1913 Webster]