Definition of talon noun from the Oxford Advanced Learner's Dictionary

 

talon

 noun
noun
BrE BrE//ˈtælən//
 
; NAmE NAmE//ˈtælən//
 
 
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a long sharp curved nail on the feet of some birds, especially birds of prey (= birds that kill other creatures for food) Word Origin late Middle English (denoting any heel-like part or object): from Old French, literally ‘heel’, from Latin talus ‘ankle bone, heel’.
See the Oxford Advanced American Dictionary entry: talon