home m Spyros Simotas metal met⋅al [met-l] –noun 1. any of a class of elementary substances, as gold, silver, or copper, all of which are crystalline when solid and many of which are characterized by opacity, ductility, conductivity, and a unique luster when freshly fractured. 2. Chemistry. a. such a substance in its pure state, as distinguished from alloys. b. an element yielding positively charged ions in aqueous solutions of its salts. 3. an alloy or mixture composed wholly or partly of such substances, as brass. 4. Music. heavy metal. a b c d e f g h i j k l m n o p q r s t u v w x y z magic mast mask melon meadow meat memorial mermaid merchandise metal milky mir-mz midnight