siphonanth

\\ˈsīfəˌnan(t)th\ noun (-s)

Etymology: back-formation from obsolete English siphonanthous of or belonging to the siphonophoran suborder Siphonanthae, from New Latin Siphonanthae (from siphon- + -anthae — feminine plural of -anthus) + English -ous

: a feeding zooid of a compound siphonophore