n. pl. as·trag·a·li (-lī′)
1. The dried root of the East Asian herb Astragalus membranaceus of the pea family, used in herbal medicine. Also called milk vetch.
2. See milk vetch.
3. See talus1.
[New Latin, from Greek astragalos, vertebra; see ost- in the Appendix of Indo-European roots.]
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:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.