siphonophore
si.pho.no.phore \si--'fa:n-*-.fo-(*)r, 'si--f*-n*-, -.fo.(*)r\ n [deriv. of Gk sipho-n + pherein to carry - more at BEAR] : any of an order (Siphonophora) of compound free-swimming or floating pel agic hydrozoans mostly delicate, transparent, and colored and with specialized zooids