regulus

¹ American  

[reg-yuh-luhs] / ˈrɛg yə ləs /

noun

plural

reguluses, reguli

1. Astronomy. Regulus, a first magnitude star in the constellation Leo.

2. Metallurgy.

   1. the metallic mass that forms beneath the slag at the bottom of the crucible or furnace in smelting ores.

   2. an impure intermediate product obtained in smelting ores.

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Regulus ² American  

[reg-yuh-luhs] / ˈrɛg yə ləs /

noun

1. Marcus Atilius died 250? b.c., Roman general.

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Regulus ¹ British  

/ ˈrɛɡjʊləs /

noun

1. the brightest star in the constellation Leo. Visual magnitude: 1.3; spectral type: B8; distance: 69 light years

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regulus ² British  

/ ˈrɛɡjʊləs /

noun

1. impure metal forming beneath the slag during the smelting of ores

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Regulus ³ British  

/ ˈrɛɡjʊləs /

noun

1. Marcus Atilius (ˈmɑːkəs əˈtɪlɪəs). died ?250 _bc , Roman general; consul (267; 256). Captured by the Carthaginians in the First Punic War, he was sent to Rome on parole to deliver the enemy's peace terms, advised the Senate to refuse them, and was tortured to death on his return to Carthage

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Regulus Scientific  

/ rĕg′yə-ləs /

1. A bright triple star in the constellation Leo, with an apparent magnitude of 1.35. Scientific name: Alpha Leonis.

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Other Word Forms

• reguline adjective

Etymology

Origin of regulus

First recorded in 1550–60; from Latin rēgulus literally, “little king” (diminutive of rēx ); in early chemistry, “antimony,” so called because it readily combines with gold (the king of metals); -ule

Example Sentences

For clarity we introduced the term "regulus" for the Latin mistura.

From De Re Metallica, Translated from the First Latin Edition of 1556 by Agricola, Georgius

Heated in close vessels, this metal rises without decomposition, being the most volatile of all the metals except the regulus of arsenic.

From Heads of Lectures on a Course of Experimental Philosophy: Particularly Including Chemistry by Priestley, Joseph

The semi-metals are bismuth, zinc, nickel, regulus of arsenic, of cobalt, of antimony, of manganese, of wolfram, and of molybdena.

From Heads of Lectures on a Course of Experimental Philosophy: Particularly Including Chemistry by Priestley, Joseph

Agricola describes the separation of the silver from the regulus by preliminary melting with argols, glass-gall, and some lead, and subsequent cupellation of the lead-silver alloy.

From De Re Metallica, Translated from the First Latin Edition of 1556 by Agricola, Georgius

It is difficult to see the object of preserving the antimony with such a sulphurizing "addition," unless it was desired to secure a regulus of antimony alone from a given antimonial ore.

From De Re Metallica, Translated from the First Latin Edition of 1556 by Agricola, Georgius