regulus
/ˈregjʊləs/noun
(pl. reguluses或reguli /-laɪ/)
1
- Chemistry, archaic a metallic form of a substance obtained by smelting or reduction【化】〈古〉金属熔块, 金属渣。
2
- a petty king or ruler小国之君（或统治者）。
派生词
reguline
/-laɪn/ adjective （限义项1 ）词源
late 16th cent.: from Latin, diminutive of rex, reg- 'king'; originally in the phrase regulus of antimony (denoting metallic antimony), apparently so named because of its readiness to combine with gold.