regulus
Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition
- noun The metallic mass that sinks to the bottom of a furnace or crucible during smelting.
- noun A relatively impure intermediate product of various ores in smelting.
from The Century Dictionary and Cyclopedia
- noun In metallurgy: The metallic mass which sinks to the bottom of a furnace or crucible, separating itself from the slag by gravity.
- noun An intermediate product obtained in smelting ores, especially those of copper, lead, silver, and nickel, and consisting chiefly of metallic sulphids.
- noun In ornithology: An old name of the goldcrest or crested wren of Europe; a kinglet.
from the GNU version of the Collaborative International Dictionary of English
- noun A petty king; a ruler of little power or consequence.
Examples
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Chinese antimony is exported in part as antimony crude (lumps of needle-like antimony sulphide), and in part as antimony regulus, which is about 99 per cent pure metal.
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A regulus which is too fine is round, compact, hard, and of a dark bluish grey on the freshly broken surface.
A Text-book of Assaying: For the Use of Those Connected with Mines.
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Isidore of Seville tells us: The basilisk is six inches in length and has white spots; it is the king regulus of snakes.
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The regulus of cobalt, dissolved in spirit of nitre, gives a red.
Note
The word 'regulus' comes from a Latin word meaning 'a petty king, prince'.
