astragalus

[a-strag-uh-luhs]
noun, plural astragali [a-strag-uh-lahy] . Zoology.
(in higher vertebrates) one of the proximal bones of the tarsus; talus.

Origin:
1535–45; < Neo-Latin; see astragal

astragalar, adjective
subastragalar, adjective
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World English Dictionary
astragalus (æˈstræɡələs)
 
n , pl -li
anatomy another name for talus
 
[C16: via New Latin from Latin: astragal]

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

astragalus as·trag·a·lus (ə-strāg'ə-ləs)
n.
See talus.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Example sentences
It was half of a pulley-shaped anklebone, known as an astragalus, belonging to another new species of whale.
One particular ankle bone, the astragalus, had the potential to settle the debate.
Astragalus extracts have been safely consumed by humans for over a thousand years and are available in any vitamin shop.
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