sagittocyst

1 definition found

sagittocyst - Collaborative International Dictionary of English v.0.48 :

  Sagittocyst \Sag"it*to*cyst\, n. [See Sagitta, and Cyst.]
     (Zool.)
     A defensive cell containing a minute rodlike structure which
     may be expelled. Such cells are found in certain Turbellaria.
     [1913 Webster]