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1 [tey-luhs]
noun, plural tali [tey-lahy] . Anatomy.
the uppermost bone of the proximal row of bones of the tarsus; anklebone.

1685–95; < Latin tālus ankle, anklebone, die. See tassel


2 [tey-luhs, tal-uhs] .
noun, plural taluses.
a slope.
Geology. a sloping mass of rocky fragments at the base of a cliff.
Fortification. the slope of the face of a work.

1635–45; < French: pseudo-learned alteration of Old French talu slope < Latin talūtium gold-bearing slope or talus (Vulgar Latin: slope), perhaps of Iberian origin

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World English Dictionary
talus1 (ˈteɪləs)
n , pl -li
Nontechnical name: anklebone the bone of the ankle that articulates with the leg bones to form the ankle joint
[C18: from Latin: ankle]

talus2 (ˈteɪləs)
n , pl -luses
1.  geology another name for scree
2.  fortifications the sloping side of a wall
[C17: from French, from Latin talūtium slope, perhaps of Iberian origin]

Collins English Dictionary - Complete & Unabridged 10th Edition
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Word Origin & History

"anklebone," 1693, from L. talus "ankle, anklebone, knucklebone" (pl. tali), related to L. taxillus "a small die, cube" (they originally were made from the knucklebones of animals).

"slope," 1645, from Fr. talus (16c.), from O.Fr. talu "slope" (12c.), probably from Gallo-Romance *talutum, from L. talutium "a slope or outcrop of rock debris," possibly of Celtic origin (cf. Breton tal "forehead, brow"). OED, however, suggests derivation from root of
talus (1) in the sense of "heel" which developed in its Romanic descendants. Mainly used of military earthwork at first; meaning "sloping mass of rocky fragments that has fallen from a cliff" is first recorded 1830.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

talus ta·lus (tā'ləs)
n. pl. ta·li (-lī')

  1. The bone of the ankle that articulates with the tibia and fibula to form the ankle joint. Also called anklebone, astragalus.

  2. The ankle.

ta'ler (-lər) adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
talus 1   (tā'ləs)  Pronunciation Key 
Plural tali (tā'lī')
The bone of the ankle that articulates with the tibia and fibula to form the ankle joint.
talus 2   (tā'ləs)  Pronunciation Key 
Plural taluses
Rock fragments that have accumulated at the base of a cliff or slope. ◇ The concave slope formed by such an accumulation of rock fragments is called a talus slope.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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