technetium
/tɛkˈni.ʃi.əm/
构词拆解
- -ium
- (chemistry) Used to form the names of metal elements, after the style of early-named elements, as well as the isotopes of hydrogen. · (chemistry) Used to form the temporary systematic element name of a metallic or nonmetallic element which is postulated to exist, or which has been newly synthesized and has not yet been assigned a permanent
词源说明
From Ancient Greek τεχνητός (tekhnētós, “artificial, manmade”) + -ium, because it was the first manmade element synthesized.
释义
名词noun
- 1A metallic chemical element (symbol Tc) with an atomic number of 43.