reguline

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re·gu·lus

R0128550 (rĕg′yə-ləs)n. pl. reg·u·li (-lī) 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 rēgulus, diminutive of rēx, rēg-, king; see reg- in Indo-European roots.]
reg′u·line (rĕg′yə-lĭn, -līn′) adj.

Reg·u·lus

R0128550 (rĕg′yə-ləs)n. A bright binary star in the constellation Leo, approximately 78 light years from Earth.
[Latin rēgulus, diminutive of rēx, rēg-, king; see regulus.]