add. ·noun a supposed new element of the rare-earth group, accompanying lutecium and scandium in the gadolinite earths. symbol, ct (no period).
CELTIUM
Meaning of CELTIUM in English
Webster English vocab. Английский словарь Webster. 2012
add. ·noun a supposed new element of the rare-earth group, accompanying lutecium and scandium in the gadolinite earths. symbol, ct (no period).
Webster English vocab. Английский словарь Webster. 2012