Definition of siphonophore
: any of an order (Siphonophora) of colonial free-swimming or floating pelagic hydrozoans that are mostly delicate, transparent, and colored and have specialized zooids
Origin and Etymology of siphonophore
ultimately from Greek siphōn + pherein to carry — more at bear
First Known Use: circa 1842
Seen and Heard
What made you want to look up siphonophore? Please tell us where you read or heard it (including the quote, if possible).