REGULUSES
Noun
reguluses
plural of regulus
Source: Wiktionary
REGULUS
Reg"u*lus (-ls), n.; pl. E. Reguluses (-Reguli (-l. Etym: [L., a
petty king, prince, dim. of rex, regis, a king: cf. F. régule. See
Regal.]
1. A petty king; a ruler of little power or consequence.
2. (Chem. & Metal.)
Definition: 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. Ilittle 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.)
Definition: A star of the first magnitude in the constellation Leo; --
called also the Lion's Heart.
Source: Webster’s Unabridged Dictionary 1913 Edition