Regulus

Webster's Dictionary of the English Language

·noun A petty king; a ruler of little power or consequence.

II. Regulus ·noun A star of the first magnitude in the constellation Leo;

— called also the Lion's Heart.

III. Regulus ·noun The button, globule, or mass of metal, in a more or less impure state, which forms in the bottom of the crucible in smelting and reduction of ores.

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