Reg·u·lus (r g y -ls)n. A bright double star in the constellation Leo. [Latin r  gulus, diminutive of rx, rg-, king; see regulus.] |
| re·gu·lus (rgy-ls) n. pl. reg·u·li (-l  ) or reg·u·lus·es 1. The metallic mass that sinks to the bottom of a furnace or crucible during smelting. 2. A relatively impure intermediate product of various ores in smelting. [Latin r gulus, diminutive of rx, rg-, king; see reg- in Indo-European roots.]reg u·line (rgy-l n, -ln ) adj. |
| Regulus (rgy-ls) A bright triple star in the constellation Leo, with an apparent magnitude of 1.35. Scientific name: Alpha Leonis. |
ThesaurusLegend: Synonyms Related Words Antonyms
| Noun | 1. | Regulus - the brightest star in Leo Leo - a zodiacal constellation in northern hemisphere between Cancer and Virgo |
| 2. | Regulus - a genus of birds of the family Sylviidae including kinglets bird genus - a genus of birds family Sylviidae, Sylviidae - in some classifications considered a subfamily (Sylviinae) of the family Muscicapidae: Old World (true) warblers; American kinglets and gnatcatchers kinglet - small birds resembling warblers but having some of the habits of titmice |
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