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 (kə-lĭs′ər-āt′, -ĭt)
Any of various arthropods of the subphylum Chelicerata, having mouthparts with chelicerae, a body composed of two main parts, and no antennae, and including the arachnids and the horseshoe crabs.

[From New Latin Chēlicerāta, subphylum name, from chēlicera, chelicera; see chelicera.]


(Animals) of, relating to, or belonging to the Chelicerata, a subphylum of arthropods, including arachnids and the horseshoe crab, in which the first pair of limbs are modified as chelicerae
(Animals) any arthropod belonging to the Chelicerata
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.chelicerate - of or relating to or resembling chelicerae
References in periodicals archive ?
Limulus is a xiphosuran chelicerate, the sister group to arachnids.
Phylogeny and systematic position of Opiliones: A combined analysis of Chelicerate relationships using morphological and molecular data.
The scorpion body plan is strikingly similar to that of the extinct eurypterids (Chelicerata: Eurypterida), and on this basis, scorpions can be considered reasonable taphonomic analogues for their extinct chelicerate cousins.
Phylum 5 Chelicerata (Chelicerates, Chelicerate Arthropods, Horseshoe Crabs, Arachnids, and Sea Spiders)
But its similarities with mandibulates are secondary modifications of features that were in part already chelicerate in nature.
At this point we are at the infancy of chelicerate eye development research, and apart from these genes little else is known about what other genes might be involved in spider eye development.
The American horseshoe crab Limulus polyphemus (Linnaeus, 1758) is a marine chelicerate and one of only four extant horseshoe crab species in the world.
They compared this to the nervous systems of horseshoe crabs and scorpions and found without doubt that the creature belonged to the chelicerate family.
The three taxa that have seen the best biochemical char-acterization of the clotting process are the vertebrates (Furie and Furie, 2000), the chelicerate arthropods (Muta and Iwanaga, 1996), and the crustaceans (Fuller and Doolittle, 1971a, b; Kopacek et al.
Since arthropod phenoloxidase sequences are more similar to those of the chelicerate hemocyanins than to crustacean hemocyanins (Durstewitz and Terwilliger, 1997; Terwilliger et al.