What is the meaning of Barbel?

A freshwater fish of the genus Barbus or other closely related taxa in the cyprinid family.

A barb or pap under the tongue of a cow or horse.

A whisker-like sensory organ, located around the mouth of certain fish, including carp, catfish, goatfish, sturgeon, and some types of shark.

barbell: a wide steel bar with premeasured weights affixed to either end, with the central span open for the hands of the weightlifter

barb (something which stands out with a sharp point)

barbel (fish)

barbell

Source: wiktionary.org