|pī(ˌ)rō+ noun
Etymology: pyr- + luminescence
: the characteristic spectral radiation (as produced by vaporized salts in a flame) of a gas or vapor excited by high temperature
|pī(ˌ)rō+ noun
Etymology: pyr- + luminescence
: the characteristic spectral radiation (as produced by vaporized salts in a flame) of a gas or vapor excited by high temperature
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012