How do you spell Barbel

Available Definitions:
1)  n. - A slender tactile organ on the lips of certain fished.
2)  n. - A large fresh-water fish ( Barbus vulgaris) found in many European rivers. Its upper jaw is furnished with four barbels.
3)  n. - Barbs or paps under the tongued of horses and cattle. See 1st Barb, 3.