The Collaborative International Dictionary
Palpicorn
Palpicorn \Pal"pi*corn\, n. [See Palpus, and Cornu.] (Zo["o]l.) One of a group of aquatic beetles ( Palpicornia) having short club-shaped antenn[ae], and long maxillary palpi.
Wiktionary
palpicorn
n. (context zoology archaic English) One of the ''Palpicornia'', a group of aquatic beetles with short club-shaped antennae and long maxillary palpus.