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The Collaborative International Dictionary
Regulus

Regulus \Reg"u*lus\ (-l?s), n.; pl. E. Reguluses (-?z), L. Reguli (-l?). [L., a petty king, prince, dim. of rex, regis, a king: cf. F. r['e]gule. See Regal.]

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

  2. (Chem. & Metal.) 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.

    Note: The name was introduced by the alchemists, and applied by them in the first instance to antimony. It signifies little king; and from the facility with which antimony alloyed with gold, these empirical philosophers had great hopes that this metal, antimony, would lead them to the discovery of the philosopher's stone.
    --Ure.

  3. (Astron.) A star of the first magnitude in the constellation Leo; -- called also the Lion's Heart.

Douglas Harper's Etymology Dictionary
Regulus

bright star in constellation Leo, 1550s, Modern Latin, apparently first so-called by Copernicus, literally "little king," diminutive of rex "king;" probably a translation of Basiliskos "little king," a Hellenistic Greek name for the star, mentioned in Geminos and Ptolemy (in the "Almagest," though elsewhere in his writings it is usually "the star on the heart of Leo"); perhaps a translation of Lugal "king," said to have been the star's Babylonian name. Klein holds it to be a corruption of Arabic rijl (al-asad) "paw of the lion" (compare Rigel).

Wiktionary
regulus

n. An impure metal formed beneath slag during the smelting of ores.

Wikipedia
Regulus

Regulus (α Leo, α Leonis, Alpha Leonis) is the brightest star in the constellation Leo and one of the brightest stars in the night sky, lying approximately 79 light years from Earth. Regulus is a multiple star system composed of four stars that are organized into two pairs. The spectroscopic binary Regulus A consists of a blue-white main-sequence star and its companion, which has not yet been directly observed, but is probably a white dwarf. Located farther away is the pair Regulus B and Regulus C and D, which are dim main-sequence stars.

Regulus (disambiguation)

Regulus may also mean:

In Latin:

  • Regulus, a Latin name for the Basilisk

In astronomy:

  • Regulus is a star.

In mathematics:

  • Regulus is the locus of lines meeting three given skew lines.

People:

  • Saint Regulus, early Christian saint, purported to have brought the relics of St. Andrew to Scotland
  • Saint Regulus (San Regolo), Christian saint, venerated in Italy
  • Marcus Atilius Regulus, a Roman consul

Animals:

  • Regulus (genus), a bird genus
  • Regulus (horse), a Thoroughbred racehorse and sire

Minerals:

  • Regulus, the metallic form of antimony
  • Regulus, the end-product of metallic ore smelting
  • Regulus, an alchemical symbol (variously ????, ????, ????, or ????) for the regulus-producing process

In Fiction:

  • Regulus, a story named for the consul, in Rudyard Kipling's Stalky & Co. collection
  • Regulus is the name of a Nemean Lion that is currently employed under Sairaorg Bael's peerage in the light novel series HS DxD.
  • Regulus, one of the main characters in the Bomberman 64 and The Second Attack video games
  • Regulus, the first chapter in the Weapon Master mode of the Soulcalibur II computer game
  • Regulus, the central city of Mechanus, and the seat of the One and the Prime, in the Planescape Dungeons and Dragons cosmology
  • Regulus Black, a fictional character from the Harry Potter series of novels by J. K. Rowling
  • Demon Regulus, a fallen Angel
  • Leo Regulus, the Leo Gold Saint from the manga Saint Seiya: The Lost Canvas
  • Regulus, a black cat that sits atop the register of the "L'arrière-boutique" in Sartre's Les Jeux Sont Faits

In Computing:

  • Regulus Grammar Compiler, a system for compiling unification grammars into grammars for speech recognition systems
  • Regulus Group, a subsidiary of 3i Infotech Limited
  • Regulus, an EDMS by DMI, bought by Emerson Electric Company and renamed as Syncade

Military:

  • SSM-N-8 Regulus, a cruise missile
  • USS Regulus (AF-57)
Regulus (genus)
  1. redirect Kinglet
Regulus (horse)

Regulus was an undefeated Thoroughbred racehorse stallion foaled in 1739.

Usage examples of "regulus".

There we ceded our Kingdom of Ulaid to Aonghas, Regulus of the Western Isles, and received them back as a feoff, so he now is our overlord and, we think, too tough a nut for even the High King to contemplate cracking without losing more teeth than he can easily afford to lose.

King James is, himself, one of the vassals of the Regulus, holding lands in the central highlands in feoff from him.

The Romans invade Africa 72 Their naval victory 72 Brilliant success of Regulus in Africa 72 The Carthaginians sue in vain for peace 72 255.

Arrival of the Lacedaemonian Xanthippus 72 He restores confidence to the Carthaginians 73 Defeat and capture of Regulus 73 Destruction of the Roman fleet by a storm 73 The Romans build another fleet 73 253.

Victory of Metellus at Panormus 73 Embassy of the Carthaginians to Rome 73 Heroic conduct of Regulus 74 250.

On the approach of winter, Manlius, one of the Consuls, by order of the Senate, returned to Rome with half of the army, while Regulus remained with the other half to prosecute the war.

The Carthaginian troops retired within the walls of the capital, and Regulus now overran the country without opposition.

Their fleet, which had been sent to Africa to carry off the remains of the army of Regulus, had not only succeeded in their object, but had gained a victory over the Carthaginian fleet.

When the news of the barbarous death of Regulus reached Rome, the Senate is said to have given Hamilcar and Bostar, two of the noblest Carthaginian prisoners, to the family of Regulus, who revenged themselves by putting them to death with cruel torments.

The larger, elder man was Sir Aonghas Dubh, Chief of that ilk, Regulus of the Isles, Earl of Ross, and Earl of Inverness Shire.

He was called by many the second most powerful man in all of the Kingdom of Scotland, and a smaller number averred him even more powerful than the new-crowned king, James VI Steward Mac an Toisich, but beyond the holdings of the Regulus, few men voiced this opinion loudly, if at all.

The Regulus showed an almost-complete set of strong but worn yellow teeth in a broad grin.

Black Bull of the Hebrides, Sir Aonghas Mac Dhomhnuill, Regulus of the Isles, Earl of Ross and Sheriff of Inverness, now overlord of the kingdoms of Ulaid and Airgialla, as well.

Scotland and King James are now his allies, and I doubt that he would like me taking any part in an invasion of any lands of the Regulus, which I am certain is what Brian presently contemplates attempting.

The dust settled down on the road to the hospital as Helva signaled Regulus Base of the completion of her mission and her estimated return.