Definiciones
1.NounA horny, chitinous, or bony external plate or scale, as on the shell of a turtle, the skin of crocodiles, or the feet and legs of birds.
2.NounA proneural gene, often associated with achaete, that is required for the formation of many larval and adult sense organs
3.NounA small shield.
4.NounAn old French gold coin.