Of animals: having a skin or outer covering resembling mail-armour. Cf. mail, n.3 2d.

Of animals: Having a hard integument.

Crusted; crustaceous.

Zoology. Covered as with a helmet; furnished with a galea.

= galeated, adj. 1 2.

Of an animal, or a part of its body: having the surface protected by a defensive outer layer of scales, bones, plates, etc.; = armoured, adj. 2.

Furnished with or wearing a cuirass; also figurative.

Of (part of) an animal: having a protective covering of tough skin, scales, etc.

Having an external bony covering; = exoskeletal adj. rare.