Cheliceratan.

Brit.

/kəˌlɪsəˈreɪtə/, U.S.

/kəˌlɪsəˈrɑdɑ/

Origin: A borrowing from Latin. Etymon: Latin Chelicerata.

Etymology: < scientific Latin Chelicerata (R. Heymons 1901, in Zoologica 33 143) < chelicera (see chelicera n.) + -ata (see -ate suffix²). Compare earlier chelicerate adj.

Zoology.

With plural agreement: a group of arthropods comprising the arachnids, horseshoe crabs, the extinct eurypterids, and (in many schemes) sea spiders, characterized by feeding appendages that are jointed pincers or chelicerae (as distinct from a single pair of mandibles). Also: animals of this group (collectively or individually); chelicerates.The Chelicerata are the only arthropods to lack antennae, and the chelicerae represent the first pair of appendages. They are now regarded as a subphylum or phylum.

ΚΠ

1919 Amer. Naturalist 53 152 The division of the Arthropoda into ‘Teleiocerata’ and ‘Chelicerata’ by Heymons, 1901.., can not be strictly applied when we take these forms into consideration.

1949 W. C. Allee et al. Princ. Animal Ecol. xxxiii. 632/2 Chelicerae adapted to predation and ultimately also to parasitism are characteristic of the superclass Chelicerata (Arthropoda).

1987 M. S. Laverack & J. Dando Lect. Notes Invertebr. Zool. (ed. 3) xxiii. 111/2 Chelicerata are distinguished by: (i) Biramous (two-shafted) limbs modified for special purposes..(ii) Gnathobases utilized in feeding.

2001 Nature 13 Sept. 121/1 Extant arthropods are divided into five subphyla: Hexapoda (insects), Crustacea.., Myriapoda.., Chelicerata (spiders, scorpions, mites and ticks) and Pycnogonida (sea spiders).

This entry has been updated (OED Third Edition, September 2009; most recently modified version published online March 2022).

单词	chelicerata
释义	Cheliceratan. Brit. /kəˌlɪsəˈreɪtə/, U.S. /kəˌlɪsəˈrɑdɑ/ Origin: A borrowing from Latin. Etymon: Latin Chelicerata. Etymology: < scientific Latin Chelicerata (R. Heymons 1901, in Zoologica 33 143) < chelicera (see chelicera n.) + -ata (see -ate suffix²). Compare earlier chelicerate adj. Zoology. With plural agreement: a group of arthropods comprising the arachnids, horseshoe crabs, the extinct eurypterids, and (in many schemes) sea spiders, characterized by feeding appendages that are jointed pincers or chelicerae (as distinct from a single pair of mandibles). Also: animals of this group (collectively or individually); chelicerates.The Chelicerata are the only arthropods to lack antennae, and the chelicerae represent the first pair of appendages. They are now regarded as a subphylum or phylum. ΚΠ 1919 Amer. Naturalist 53 152 The division of the Arthropoda into ‘Teleiocerata’ and ‘Chelicerata’ by Heymons, 1901.., can not be strictly applied when we take these forms into consideration. 1949 W. C. Allee et al. Princ. Animal Ecol. xxxiii. 632/2 Chelicerae adapted to predation and ultimately also to parasitism are characteristic of the superclass Chelicerata (Arthropoda). 1987 M. S. Laverack & J. Dando Lect. Notes Invertebr. Zool. (ed. 3) xxiii. 111/2 Chelicerata are distinguished by: (i) Biramous (two-shafted) limbs modified for special purposes..(ii) Gnathobases utilized in feeding. 2001 Nature 13 Sept. 121/1 Extant arthropods are divided into five subphyla: Hexapoda (insects), Crustacea.., Myriapoda.., Chelicerata (spiders, scorpions, mites and ticks) and Pycnogonida (sea spiders). This entry has been updated (OED Third Edition, September 2009; most recently modified version published online March 2022). < n.1919
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