| 释义 |
pyra·nom·e·ter
\ˌpirəˈnäməd.ə(r), ˌpīr-\ noun
Etymology: International Scientific Vocabulary pyr- + ano- + -meter
: an instrument for measuring radiation from the sky by comparing the heating effect of such radiation upon two blackened metallic strips with that produced in the same strips when heated by means of an electric current |