| an instrument that detects ionizing radiation by picking up sparks of light from alpha particles. |
, adjective spin·thar·i·scope  (spĭn-thār'ĭ-skōp') n. A device for observing individual scintillations produced by ionizing radiation, as one consisting of a tube with a magnifying lens at one end and a phosphorescent screen and speck of radioactive salt at the other. [Greek spintharis, spark + -scope.] spin·thar'i·scop'ic (-skŏp'ĭk) adj. |
əˌskoʊp