See also: mouth-part
- mouth-part (especially historically)
mouthpart (plural mouthparts)
- (usually in plural) An appendage-like structure on the outside of an insect's or other arthropod's mouth, serving to manipulate and masticate food.
- The fans, or brushes, create currents in the water that direct food toward the larvae’s mouthparts and help stuff the food into their deeply concealed mouths.