Regulus, Astronomy. a first magnitude star in the constellation Leo.
the metallic mass that forms beneath the slag at the bottom of the crucible or furnace in smelting ores.
an impure intermediate product obtained in smelting ores.
Other definitions for Regulus (2 of 2)
Marcus A·til·i·us [uh-til-ee-uhs], /əˈtɪl i əs/, died 250? b.c., Roman general.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use regulus in a sentence
Mr. regulus thought with Dr. Harlowe, that it was a pity I was not at school.
"It must not be thought of at present," she answered, speaking to Mr. regulus.
"I think I can intercede with Mr. regulus to release you," said Mrs. Linwood.
At his heart is a gorgeous star of first magnitude, α or regulus.Astronomy for Amateurs | Camille Flammarion
The residuum consists of revived mercury, with some regulus and calx of antimony.
British Dictionary definitions for regulus (1 of 3)
impure metal forming beneath the slag during the smelting of ores
- reguline, adjective
British Dictionary definitions for Regulus (2 of 3)
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
British Dictionary definitions for Regulus (3 of 3)
the brightest star in the constellation Leo. Visual magnitude: 1.3; spectral type: B8; distance: 69 light years
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Scientific definitions for Regulus
A bright triple star in the constellation Leo, with an apparent magnitude of 1.35. Scientific name: Alpha Leonis.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.