ˈbrākēəm, -rak- noun
( plural bra·chia -ēə)
Etymology: Latin bracchium, brachium arm, forearm — more at brace
1. : the upper segment of the arm or forelimb from the shoulder to the elbow
2. : any of certain processes similar to an arm: as
a. : a ray of a crinoid
b. : a tentacle of a cephalopod
c. : a tentaculiferous process in certain jellyfishes
d. : either of the coiled muscular paired appendages that together constitute the lophophore of a brachiopod