adj.
Pronunciation: ˌ r ā -d ē - ō - ' me-trik
Function: adjective
Etymology: International Scientific Vocabulary
Date: 1877
1 : relating to, using, or measured by a radiometer
2 : of or relating to the measurement of geologic time by means of the rate of disintegration of radioactive elements
– ra · dio · met · ri · cal · ly \ -tri-k( ə -)l ē \ adverb