Definition of avicularium in English:


nounPlural avicularia

  • (in some bryozoans) any of a number of modified zooids that take the form of a pair of snapping jaws resembling a bird's head, serving to prevent other organisms from settling on the colony.

    Compare with vibraculum
    • ‘Several unusual groups have developed a free living life mode, where the colony is physically supported by specialized modules, avicularia supported.’
    • ‘Adventitious avicularia and cortical zooidal polymorphs are not apparent.’
    • ‘Enlarged avicularia on zooids at row bifurcations, on branch margins, and adjacent to ovicells are generally similar to those in M. auriculatum.’
    • ‘The autozooids are flanked by spines and there are also a few avicularia.’


Mid 19th century: modern Latin, from avicula, diminutive of avis ‘bird’.