1. relating to or involving the measurement of radiation
Usage: scientific; technical
2. relating to radiometric dating, a method of determining age using radioactive decay
Usage: geology; archaeology

Examples

• The scientists used radiometric instruments to measure solar radiation.
• Radiometric dating revealed the fossil was millions of years old.
• The laboratory specializes in radiometric analysis of rock samples.
• Radiometric techniques help determine the age of ancient artifacts.
• The radiometric data showed high levels of background radiation.
• Carbon-14 is commonly used in radiometric dating methods.