bracchĭŏlum

i, n.

bracchium

I. A small, delicate arm: puellulae, * Cat. 61, 181.—
II. Transf.
A. A muscle in a horse's leg, Veg. 1, 25, 4 and 5; cf. id. 6, 1, 1; 6, 2, 2; 5, 27, 7; 5, 70, 2.—
B. The arm of a chair or seat, Vulg. 2 Par. 9, 18.
Lewis & Short
A Latin Dictionary, 1879
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