Meaning of chelicera in English:


Pronunciation /kəˈlɪs(ə)rə/

nounplural noun chelicerae/kəˈlɪs(ə)riː/

  • Either of a pair of appendages in front of the mouth in arachnids and some other arthropods, usually modified as pincer-like claws.

    Compare with chela

    ‘The front pair of appendages, the chelicerae, are the ones which contain the poison glands.’
    • ‘The chelicerae (first appendages) may be clawed mouthparts or may be modified for piercing, as in ticks.’
    • ‘The legs, pedipalps and chelicerae are pulled free from the skin with rhythmic movements until finally the spider pulls free.’
    • ‘There is no eye streak above their anterior eyes, as seen in SR males, but the chelicerae are striped.’
    • ‘Although they have weak chelicerae, they secrete extremely potent venom, which enables them to attack insects 2-3 times their size.’


Mid 19th century modern Latin, from Greek khēlē ‘claw’ + keras ‘horn’.