(noun) (Greek mythology) a giant Boeotian hunter who pursued the Pleiades and was eventually slain by Artemis; was then placed in the sky as a constellation
(noun) a constellation on the equator to the east of Taurus; contains Betelgeuse and Rigel
Definitions for Nebula
(noun) an immense cloud of gas (mainly hydrogen) and dust in interstellar space
(noun) (pathology) a faint cloudy spot on the cornea
(noun) a medicinal liquid preparation intended for use in an atomizer