talon

CONT: [...] le sabot, corné, sert de muraille protectrice, ou paroi, qui se divise en pince (à l'avant), mamelles (latéralement et à l'avant), quartiers (latéralement), talons et arc-boutants à l'arrière.

CONT: In the long-footed mammals, both the hoofed species (unguligrade) and the clawed forms which walk on the toes (digitigrade), the heel is well above the ground at the apex of the angular joint known as the hock.
CONT: Heels grow at an angle, not straight down. When the heels get too long they grow under the foot.