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

 

armadillo

 noun
noun
BrE BrE//ˌɑːməˈdɪləʊ//
 
; NAmE NAmE//ˌɑːrməˈdɪloʊ//
 
(pl. armadillos) Wild mammals
 
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an American animal with a hard shell made of pieces of bone See related entries: Wild mammals Word Origin late 16th cent.: from Spanish, diminutive of armado ‘armed man’, from Latin armatus, past participle of armare ‘to arm’.
See the Oxford Advanced American Dictionary entry: armadillo