Noun
The word is derived from chelicera
of Chelicera
Source: Webster's dictionaryThe chelicerae, which are very sharp, are used to pull small amounts of food off the prey item for digestion into a pre-oral cavity below the chelicerae and carapace. Source: Internet
The chelicerae ("claw horns") that give the sub-phylum its name normally consist of three sections, and the claw is formed by the third section and a rigid extension of the second. Source: Internet