An armadillo.Licensed from iStockPhoto
Origin: Spanish diminutive of armado, armored ; from Classical Latin armatus: see armada
Used by arrangement with John Wiley & Sons, Inc.
noun pl. ar·ma·dil·los
Origin: Spanish, diminutive of armado, armored, past participle of armar, to arm, from Latin armāre, from arma, arms; see ar- in Indo-European roots.