Definitions

1. noun

a chemical element that is a synthetic radioactive metalloid, atomic number 43

“The team of scientists discovered a new isotope of technetium.”

2. noun

a radioactive isotope used in medicine for diagnostic imaging and treatment

“The doctor recommended a technetium scan to diagnose the patient’s condition.”

3. noun

a substance containing technetium, used in various applications

“The company developed a new alloy containing technetium for use in aerospace.”