1 entry 1 source
Pelopium
Open directlyWebster's 1828 Dictionary · 1828
Part of speech: noun (n.)
A supposed new metal found in columbite, afterwards shown to be identical with columbium, or niobium.
1 entry 1 source
Part of speech: noun (n.)
A supposed new metal found in columbite, afterwards shown to be identical with columbium, or niobium.