IPA: //ˌreɪdiəʊˈsɛnsɪtɪv//
KK: /ˌreɪdioʊˈsɛnsɪtɪv/
Having a reaction or response to radiation, particularly in biological contexts.
Certain types of cancer cells are radiosensitive, meaning they can be effectively treated with radiation therapy.
Radiosensitive → It is formed from "radio-" (from Latin *radius*, meaning ray) and "sensitive" (from Latin *sensitivus*, meaning capable of feeling or perceiving). The word describes something that is capable of being affected by rays, particularly in the context of radiation.
Think of 'rays' ('radio-') that can 'affect' ('sensitive') something — that's why radiosensitive means something that is sensitive to rays.