regulus

noun
reg·​u·​lus | \ ˈre-gyə-ləs How to pronounce regulus (audio) \

Definition of regulus

 (Entry 1 of 2)

1 capitalized : a first-magnitude star in the constellation Leo
2 [ Medieval Latin, metallic antimony, from Latin ] : the more or less impure mass of metal formed beneath the slag in smelting and reducing ores

Regulus

biographical name
Reg·​u·​lus | \ ˈre-gyə-ləs How to pronounce Regulus (audio) \

Definition of Regulus (Entry 2 of 2)

Marcus Atilius died circa 250 b.c. Roman general

Examples of regulus in a Sentence

Recent Examples on the Web: Noun

Regulus will be only three degrees away from the moon, about equal to the width of your two middle fingers held at arm’s length. National Geographic, "This Week’s Night Sky: See Jupiter as a NASA Probe Closes In," 4 July 2016

First Known Use of regulus

Noun

1559, in the meaning defined at sense 1

History and Etymology for regulus

Noun

New Latin, from Latin, petty king, from reg-, rex king — more at royal

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