snarling letter

The letter R. [R.] *snarling-muscles, s. pl. Anat .: A popular expre ion used by Bell for the muscles employed by a dog in snarling. (Darwin: Descent of Man (ed. 2d), p. 41.) snarl-ing, s. [SNARL (3), υ.] Metal-work.: A method of raising hollow works in metal by percu ion.