/ ˌɑːməˈdɪləʊ; NAmE ˌɑːrməˈdɪloʊ/ noun
( pl. -os ) an American animal with a hard shell made of pieces of bone, that eats insects and rolls into a ball if sth attacks it
••
WORD ORIGIN
late 16th cent.: from Spanish , diminutive of armado armed man, from Latin armatus , past participle of armare to arm.