vibraculum
Pronunciation: /vʌɪˈbrakjʊləm, vɪ-/
Definition of vibraculum
noun ( plural vibracula /-lə/)
Zoology- (in some bryozoans) any of a number of modified zooids that bear a long whip-like seta, serving to prevent other organisms from settling on the colony. Compare with avicularium.
Origin:
mid 19th century: modern Latin, from Latin vibrare (see vibrate)