Definition of Canis Minor
a small constellation (the Little Dog), said to represent one of the dogs following Orion. It is close to the celestial equator and contains the bright star Procyon.
(as genitive Canis Minoris
/mɪˈnɔːrɪs/) used with preceding letter or numeral to designate a star in this constellation:the star Beta Canis Minoris