'Radiomicrometer' definitions:

Definition of 'radiomicrometer'

(from WordNet)
noun
Radiometer that is extremely sensitive

Definition of 'Radiomicrometer'

From: GCIDE
  • Radiomicrometer \Ra`di*o*mi*crom"e*ter\ (r[=a]`d[i^]*[-o]*m[-i]*kr[o^]m"[-e]*t[~e]r), n. [Radio- + micrometer.] (Physics) A very sensitive modification or application of the thermopile, used for indicating minute changes of radiant heat, or temperature. [1913 Webster]