Vibraculum

1 definition found

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

  Vibraculum \Vi*brac"u*lum\, n.; pl. {Vibracula}. [NL., dim. from
     L. vibrare to vibrate.] (Zool.)
     One of the movable, slender, spinelike organs or parts with
     which certain bryozoans are furnished. They are regarded as
     specially modified zooids, of nearly the same nature as
     Avicularia.


     [1913 Webster]