a. Also 6 brachiall. [ad. L. brāchiālis, f. brāchium, bracchium an arm (see -AL 1); cf. F. brachial.]
1. Belonging to the arm; chiefly in Phys., as brachial vein, artery, nerve, muscle, ganglion, etc.; also brachial tooth, an obs. name for the styloid process of the ulna. Rare in non-technical use.
1578. Banister, Hist. Man, III. 42. Two distinct orders of Brachiall bones.
1726. Monro, Anat. Nerves (1741), 66. It contributes to form the brachial Nerves.
1841. Catlin, N. Amer. Ind. (1844), II. lviii. 225. Inferior in brachial strength.
b. quasi-sb. = brachial artery, vein, etc.
1859. Todd, Cycl. Anat. & Phys., V. 542/1. The brachials and femorals are split up into hair-like capillaries.
2. Of the nature of, or resembling, an arm. (Zool.)
1835. Kirby, Hab. & Inst. Anim., II. xvii. 106. Twelve tentacles rather smaller than the brachial ones.
1836. Todd, Cycl. Anat. & Phys., I. 36/2. The mouth, surrounded by four brachial appendages.