Any of various small slender marine worms of the phylum Chaetognatha, having a narrow, almost transparent body and spines on each side of the mouth that are used for grasping prey. Also called chaetognath.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
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