bra·chi·o·pod 
(brākē-ə-pŏd′, brăkē-)
(brākē-ə-pŏd′, brăkē-)n.
Any of numerous marine invertebrates of the phylum Brachiopoda, having a shell with two valves of unequal size enclosing an armlike lophophore used for feeding, and including many extinct species commonly found as fossils. Also called lampshell.
[From New Latin Brāchiopoda, phylum name : Latin brācchium, arm; see BRACHIUM + New Latin -poda, -pod.]
brachi·o·pod′ adj.