1 entry 1 source
Actinium
Open directlyWebster's 1828 Dictionary · 1828
Part of speech: noun (n.)
A supposed metal, said by Phipson to be contained in commercial zinc; -- so called because certain of its compounds are darkened by exposure to light.
1 entry 1 source
Part of speech: noun (n.)
A supposed metal, said by Phipson to be contained in commercial zinc; -- so called because certain of its compounds are darkened by exposure to light.