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Definition of Regulus
1. Noun. The brightest star in Leo.
2. Noun. A genus of birds of the family Sylviidae including kinglets.
Generic synonyms: Bird Genus
Group relationships: Family Sylviidae, Sylviidae
Member holonyms: Kinglet
Definition of Regulus
1. n. A petty king; a ruler of little power or consequence.
Definition of Regulus
1. Proper noun. (star) A star in the constellation Leo; alpha (?) Leonis. ¹
2. Noun. an impure metal formed beneath slag during the smelting of ores. ¹
¹ Source: wiktionary.com
Definition of Regulus
1. a mass that forms beneath the slag in a furnace [n -LI or -LUSES] : REGULINE [adj]
Medical Definition of Regulus
1.
Origin: L, a petty king, prince, dim. Of rex, regis, a king: cf. F. Regule. See Regal.
1. A petty king; a ruler of little power or consequence.
2.