HYDROCLADIUM

ˌ ̷ ̷ ̷ ̷+ˈklādēəm noun

( plural hydrocla·dia -ēə)

Etymology: New Latin, from hydr- + Greek kladion twig, diminutive of klados branch — more at gladiator

: one of the small branchlets bearing the hydrothecae in a colony of plumularian hydroids