There are 2 definitions of Regulus in English:


Line breaks: Regu|lus
Pronunciation: /ˈrɛgjʊləs
  • The brightest star in the constellation Leo. It is a triple system of which the primary is a hot dwarf star.


Latin, literally 'little king'.

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Word of the day astrogation
Pronunciation: ˌastrə(ʊ)ˈgeɪʃ(ə)n
(in science fiction) navigation in outer space

There are 2 definitions of Regulus in English:


Line breaks: regu|lus
Pronunciation: /ˈrɛgjʊləs

noun (plural reguluses or reguli /-lʌɪ, -liː/)

  • 1 Chemistry , • archaic A metallic form of a substance, obtained by smelting or reduction.
    More example sentences
    • He also bought the nearby smelting works at Scotts Creek to refine copper regulus produced at the Bremer mine.
    • When it demolished the furnace in 1882 it recovered also some copper from stockpiled regulus.
    • This was smelted, which reduced the bulky and heavy copper ore to a much smaller and more valuable regulus, before transporting it to the English and Australian Copper Smelting Company at Port Adelaide or to England.





late 16th century: from Latin, diminutive of rex, reg- 'king'; originally in the phrase regulus of antimony (denoting metallic antimony), apparently so named because of its readiness to combine with gold.

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