palpus
/ˈpælpəs/
noun
- A segmented appendage near the mouth of an insect, spider, or crustacean, used for feeling, tasting, or handling food.
- The spider used its palpus to sense vibrations in its web.
- The insect cleaned its palpus after tasting the sweet nectar.
- A lobster's palpus helps it examine food before eating.