being of the color of a ruby; ruby-colored.
(literary) of the colour ruby; dark red
noun a plant protein which fixes carbon in photosynthetic organisms and accepts oxygen in place of carbon dioxide Usage Note science
Rubivirus Ru·bi·vi·rus (rōō’bə-vī’rəs) n. A virus genus of the family Togaviridae that includes the rubella virus.
noun 1. a silver or copper-alloy coin and monetary unit of Russia, the Soviet Union, and its successor states, equal to 100 kopecks. noun 1. a variant spelling of rouble
noun 1. Andrey (ˈandre). ?1370–1430, Russian icon painter. His masterpiece is The Old Testament Trinity