in anatomy. See Back-bone.

Back, in the menage. To back a horse, or mount a horse a dos, in French, is to mount him bare-backed, or without a saddle.

Back-bone, or Spine. See Anatomy, p. 166, 167.

Back-gammon, an ingenious game played with dice and tables, to be learned only by observation and practice.

Back-painting. See Painting.

Back-slap, in the sea-language. See Navigation.

Back-stays. See Stays.

Back-tack, in Scots law: When a wadsetter, instead of possessing the wadset-lands, grants a tack thereof to the reverfor payment of a certain sum in name of tack-duty, that tack is called a back-tack. See Scots Law, tit. Redeemable rights.

Back-worm, in falconry. See Filanders.