n.
Pronunciation: ' re-gy ə -l ə s
Function: noun
Etymology: New Latin, from Latin, petty king, from reg-, rex king ― more at ROYAL
Date: 1559
1 capitalized : a first-magnitude star in the constellation Leo
2 [ Medieval Latin, metallic antimony, from L] : the more or less impure mass of metal formed beneath the slag in smelting and reducing ores