1. 
   Vibraculum
   Vi·brac'u·lum noun ; plural Vibracula . [ New Latin , dim. from Latin vibrare to vibrate.] (Zoology) One of the movable, slender, spinelike organs or parts with which certain bryozoans are furnished. They are regarded...
   Found op http://www.encyclo.co.uk/webster/V/22
   
   
2. 
   vibraculum
   Origin: NL, dim. From L. Vibrare to vibrate. ... <zoology> 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. ... Source: Websters Dictionary ... (01 Mar 199...
   Found op http://www.mondofacto.com/facts/dictionary?vibraculum
   
   
3. 
   Vibraculum
   • (n.) 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.
   Found op http://thinkexist.com/dictionary/meaning/vibraculum/
   
   
4. 
   vibraculum
   (from the article `moss animal`) ...In the gymnolaemate Bugula the avicularia are movable on short stalks and closely resemble miniature birds` heads—hence the name avicularium. ...
   Found op http://www.britannica.com/eb/a-z/v/19
   
   

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