(redirected from chelicerae)
Also found in: Thesaurus, Medical, Encyclopedia, Wikipedia.


n. pl. che·lic·er·ae (-ə-rē′)
Either of the first pair of fanglike appendages near the mouth of an arachnid or a horseshoe crab, often modified for grasping and piercing.

[New Latin : chela + Greek keras, horn; see ker- in Indo-European roots.]


n, pl -erae (-əˌriː)
(Zoology) one of a pair of appendages on the head of spiders and other arachnids: often modified as food-catching claws
[C19: from New Latin, from French chélicère, from chél- see chela1 + -cère from Greek keras horn]
cheˈliceral adj


(kəˈlɪs ər ə)

n., pl. -er•ae (-əˌri)
one member of the first pair of usu. pincerlike appendages of spiders and other arachnids.
[1825–35; < New Latin, =cheli- cheli- + Greek kér(as) horn + Latin -a feminine n. ending]
che•lic′er•al, adj.
che•lic′er•ate` (-əˌreɪt, -ər ɪt) adj.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.chelicera - either of the first pair of fang-like appendages near the mouth of an arachnid; often modified for grasping and piercing
appendage, extremity, member - an external body part that projects from the body; "it is important to keep the extremities warm"
References in periodicals archive ?
2016) indicated a close relationship between the morphological deformity and the structure of the brain/brains: fusion of pedipalps and chelicerae were accompanied by the fusion of corresponding ganglia.
After laying her eggs, the female surrounds them with an open mesh of spider silk, and holds them with her chelicerae (Main 1976).
We also observed protrusions through the skin of the toad's throat which may have been the tarantula's chelicerae and fangs striking from inside the toad.
Chelicerae of different sizes have been identified in the Atholville exposure, indicating animals ranging in length from about 65 to 170 cm (Miller 2007a).
iranii (A) by its orange-coloured abdomen (both dorsally and ventrally) and by its pale face and dark brown, hairy chelicerae (versus a black face and smooth black chelicerae in Olios cf.
In a field experiment, four treatments examined the effects of multiple trophic-level interactions on plant biomass: 1) control treatment of vegetation only, 2) a two trophic-level interaction (grasshoppers and vegetation), and two different three trophic-level interactions: 3) the presence of "predator spiders" to examine consumptive effects, and 4) "risk spiders" with their chelicerae disarmed with beeswax to examine non-consumptive effects.
The genus is characterized by having: relatively large body (more than 5 mm long); a crown-like mound containing numerous black-tipped tubercles on cephalothorax anterior to the ocularium, coxae I-IV smooth and only with sparse setae; chelicerae usually normal structured with blackish brown zebra-like stripped pattern, pedipalps short, robust and femora, patella, tibiae covered with numerous black-tipped tubercles (males having microtubercles on ventor of tarsus); legs short or more commonly long (Tsurusaki 1987; Tsurusaki et al.
And a pair of jaw-like fanged projections called chelicerae folds down against the neck, where a pelican would tuck its beak.
Over the course of 68 of these cage matches, the male with the bigger chelicerae, heavy, bristling fangs hanging in front of their mouth parts, usually scared the other guy off without a fight.