rhizopodium
noun
rhi·zo·po·di·um
ˌrīzəˈpōdēəm
variants or less commonly rhizopod
ˈrīzəˌpäd 
plural -s
: a filamentous branching anastomosing ectoplasmic pseudopodium that is typical of many foraminiferans and some testaceans
Word History
Etymology
New Latin rhizopodium, from rhiz- + -podium