Regulus

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Definition

Noun: 1. A genus of small birds: A genus of very small passerine birds in the family Regulidae (sometimes classified within Sylviidae), commonly known as kinglets or goldcrests. 2. A bright star: The brightest star in the constellation Leo; also known as Alpha Leonis.

Usage Examples
  • Noun (Genus):
    • The genus Regulus includes the goldcrest and the firecrest.
    • Ornithologists study the migratory patterns of Regulus.
  • Noun (Star):
    • Look for the star Regulus at the base of the Sickle asterism in Leo.
    • Regulus is a multiple star system located about 79 light-years from Earth.
Advanced Usage
  • In astronomy: "Regulus" is often used in scientific and astrological contexts to refer to the specific star. It is one of the four "Royal Stars" of ancient Persia.
    • In astrology, Regulus is associated with leadership and success.
  • In ornithology: The genus name is used in formal taxonomic and scientific descriptions.
    • The paper described a new finding related to the Regulus genus.
Variants and Related Words
  • Regulidae (n): The bird family to which the genus belongs.
  • Kinglet (n): The common name for birds in the genus .
  • Alpha Leonis (n): The astronomical designation for the star Regulus.
Synonyms
  • For the star: Alpha Leonis, Cor Leonis ("Heart of the Lion").
  • For the bird genus: (No direct synonyms, but the type species are) goldcrest, firecrest.
Notes on Different Meanings

The two meanings of "Regulus" are homographs (identical in spelling) but are from completely different origins and refer to distinct entities (biology vs. astronomy). Context is essential to determine which meaning is intended.

Noun
  1. a genus of birds of the family Sylviidae including kinglets
  2. the brightest star in Leo

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