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regulus

 - 6 dictionary results

reg⋅u⋅lus

  [reg-yuh-luhs]
Use regulus in a Sentence
–noun, plural -lus⋅es, -li  [-lahy] .
1. (initial capital letter) Astronomy. a first magnitude star in the constellation Leo.
2. Metallurgy.
a. the metallic mass that forms beneath the slag at the bottom of the crucible or furnace in smelting ores.
b. an impure intermediate product obtained in smelting ores.
Origin:
1550–60; < L rēgulus lit., little king (dim. of rēx); in early chemistry, antimony, so called because it readily combines with gold (the king of metals); see -ule

Reg⋅u⋅lus

  [reg-yuh-luhs]
–noun
Marcus A⋅til⋅i⋅us  [uh-til-ee-uhs] , died 250? b.c., Roman general.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To regulus
re·gu·lus   (rěg'yə-ləs)   
n.   pl. reg·u·li (-lī) or reg·u·lus·es

  1. The metallic mass that sinks to the bottom of a furnace or crucible during smelting.

  2. A relatively impure intermediate product of various ores in smelting.


[Latin rēgulus, diminutive of rēx, rēg-, king; see reg- in Indo-European roots.]
reg'u·line (rěg'yə-lĭn, -līn') adj.
Reg·u·lus   (rěg'yə-ləs)   
n.  A bright double star in the constellation Leo.

[Latin rēgulus, diminutive of rēx, rēg-, king; see regulus.]
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Word Origin & History

Regulus 
"bright star in constellation Leo," 1559, from L., lit. "little king," dim. of rex "king." But Klein says this may be a corruption of the Arabic name, rijil (al-asad) "paw (of the lion)," from rijil "foot, paw."
Online Etymology Dictionary, © 2001 Douglas Harper
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Science Dictionary
Regulus   (rěg'yə-ləs)  Pronunciation Key 
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 © 2002. Published by Houghton Mifflin. All rights reserved.
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