Pronunciation: (lē'ō),[key] —n., —gen.Le•o•nisPronunciation: (lē-ō'nis)[key]for 1. 1. Astron.the Lion, a zodiacal constellation between Virgo and Cancer, containing the bright star Regulus.
2. Astrol. a. the fifth sign of the zodiac: the fixed fire sign. See illus. under zodiac. b. a person born under this sign, usually between July 23rd and August 22nd.
3. a male given name: from a Greek word meaning “lion.”