- A precious stone of a carmine red color, sometimes verging to
violet, or intermediate between carmine and hyacinth red. It is a red
crystallized variety of corundum. - The color of a ruby; carmine red; a red tint. - That which has the color of the ruby, as red wine. Hence, a
red blain or carbuncle. - See Agate, n., 2. - Any species of South American humming birds of the genus
Clytolaema. The males have a ruby-colored throat or breast.