The term 'armadillo armor' refers to the protective covering of an armadillo, which is composed of several components. The scute, which is a five-letter word, is a hard, bony plate that covers the back and sides of the armadillo. The apara, also a five-letter word, is a layer of thick, leathery skin that covers the scute. The PLATED, a six-letter word, is a layer of keratinous material that covers the apara. Finally, the tatou, a five-letter word, is a layer of tough, spiny hairs that cover the PLATED layer. Together, these four components make up the armadillo's armor, providing protection from predators.