IPA: /ˌsɪn.tɪˈlɒ.mɪ.tə/
KK: /ˌsɪn.tɪˈlɑː.mɪ.tər/
A device used to measure changes in the atmosphere, often by detecting light or radiation.
The scientist used a scintillometer to monitor atmospheric conditions during the experiment.
Scintillometer → It is formed from "scintilla" (from Latin, meaning spark or small particle) and "-meter" (from Greek "metron", meaning measure). The word refers to an instrument that measures small particles or sparks, typically in the context of radiation detection.
Think of 'scintilla' meaning spark, and remember that a scintillometer measures those tiny sparks or particles.