- one of numerous small, flask-shaped bodies, chiefly in the epithelium of the tongue, which are the end organs for the sense of taste.
- any of the elevated oval-shaped sensory end organs on the surface of the tongue, by means of which the sensation of taste is experienced
- One of a number of flask-shaped receptor cell nests located in the epithelium of the papillae of the tongue and in the soft palate, epiglottis, and pharynx that mediate the sense of taste.
- Any of numerous sense organs in most vertebrate animals that are specialized to detect taste. Taste buds are sensitive to four types of taste: sweet, sour, salty, or bitter. In land vertebrates, the taste buds are found on the surface of the tongue. Fish have taste buds all over their bodies.