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Noun: palp  palp
  1. A jointed sensory appendage attached to the mouthparts of various arthropods, used for sensing and manipulating food
    "The spider used its palps to examine its prey";
    - palpus
Verb: palp  palp
Usage: rare
  1. To feel or explore by touch, especially using sensory appendages
    "The insect used its antennae to palp the surface"

Derived forms: palped, palps, palping

Encyclopedia: Palp