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Noun: regulus
  1. An impure metal formed beneath slag during the smelting of ores
Noun: Regulus  re-gyu-lus
  1. The brightest star in Leo
  2. A genus of birds of the family Sylviidae including kinglets
    - genus Regulus

Derived forms: reguluses

Type of: bird genus, star

Part of: family Sylviidae, Leo, Sylviidae

Encyclopedia: Regulus, Marcus Atilius