What is etym: [Perh. akin to E. fork, cf. frush frog of a horse.] (Anat.) The triangular prominence of the hoof, in the middle of the sole of the foot of the horse, and other animals; the fourchette called?

frog — Etym: [Perh. akin to E. fork, cf. frush frog of a horse.] (Anat.) The triangular prominence of the hoof, in the middle of the sole of the foot of the horse, and other animals; the fourchette. (Webster's 1913.)

Sources