To reduce the purity of a metal, by mixing with it a portion of one less valuable; as, to alloy gold with silver, or silver with copper.

To mix metals.

To reduce or abate by mixture; as, to alloy pleasure with misfortunes.

A baser metal mixed with a finer.

The mixture of different metals; any metallic compound; this is its common signification in chimistry.

Evil mixed with good; as, no happiness is without alloy.