Definition of chelicerate
: an arthropod of the subphylum Chelicerata having the first pair of appendages modified into chelicerae Arthropods constitute the largest phylum by far, with major subgroups of insects, chelicerates (spiders, mites, scorpions, and horseshoe crabs), and crustaceans … — Stephen Jay Gould, Natural History, January 1995
chelicerateadjective the chelicerate nervous system chelicerate arthropods Together, these marine and terrestrial orders are called the chelicerate orders based on the structure of their mouthparts, in contrast to the orders to which insects and crustaceans belong. — Rosemary G. Gillepsie and Joseph C. Spagna, in Encylopedia of Insects, 2003
Love words? You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.
Start your free trial today and get unlimited access to America's largest dictionary, with:
- More than 250,000 words that aren't in our free dictionary
- Expanded definitions, etymologies, and usage notes
- Advanced search features
- Ad free!
Origin and Etymology of chelicerate
after New Latin Chelicerata chelicerata
First Known Use: 1951
Seen and Heard
What made you want to look up chelicerate? Please tell us where you read or heard it (including the quote, if possible).