ENAMEL n.
The intensely hard calcified tissue entering into the composition of teeth. It merely covers the exposed parts of the teeth of man, but in many animals is intermixed in various ways with the dentine and cement. Enamel painting, painting with enamel colors upon a ground of metal, porcelain, or the like, the colors being…
ENGRAVING n.
The act or art of producing upon hard material incised or raised patterns, characters, lines, and the like; especially, the art of producing such lines, etc., in the surface of metal plates or blocks of wood. Engraving is used for the decoration of the surface itself; also, for producing an original, from which a patte…
EXOSKELETON n.
The hardened parts of the external integument of an animal, including hair, feathers, nails, horns, scales, etc.,as well as the armor of armadillos and many reptiles, and the shells or hardened integument of numerous invertebrates; external skeleton; dermoskeleton.
FAST a.
ulley fixed to the shaft to the pulley which revolves freely upon it, and vice versa. -- Hard and fast (Naut.), so completely aground as to be immovable. -- To make fast (Naut.), to make secure; to fasten firmly, as a vessel, a rope, or a door.