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pal·pus | \ ˈpal-pəs 
\
\ plural palpi\ ˈpal-ˌpī , -(ˌ)pē \
, -(ˌ)pē \Definition of palpus
: a segmented usually tactile or gustatory process on an arthropod mouthpart — see insect illustration
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Time Traveler for palpus
The first known use of palpus was in 1803
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