Mid 19th century; earliest use found in William Kirby (1759–1850), entomologist and naturalist. From French chélicère from ancient Greek χηλή + scientific Latin -i- + κέρας horn.
Definition of chelicer in US English:
chelicer
(also chelicere)
nounˈkɛlɪsə
US Zoology
Chelicera.
Origin
Mid 19th century; earliest use found in William Kirby (1759–1850), entomologist and naturalist. From French chélicère from ancient Greek χηλή + scientific Latin -i- + κέρας horn.