Definition of "vibracula" [vibracula]

• Plural of vibraculum. (noun)

The Century Dictionary (Public Domain)

• "In many cases the vibracula have a grooved support at the base, which seems to represent the fixed beak; though this support in some species is quite absent."
• "When a branch was placed on its face, the vibracula became entangled, and they made violent efforts to free themselves."
• "In the avicularia and vibracula of the Polyzoa we have organs widely different in appearance developed from the same source; and with the vibracula we can understand how the successive gradations might have been of service."