IPA: /ˌfoʊtəʊɪˈlɛktrɪk/
KK: /ˌfoʊtoʊɪˈlɛktrɪk/
Relating to the electrical effects that occur when light interacts with certain materials.
The photoelectric effect is a key principle in the operation of solar panels.
Photoelectric → It is formed from "photo-" (from Greek "phōs", meaning light) and "electric" (from Greek "ēlektron", meaning amber, which was known to produce static electricity). The word "photoelectric" refers to the phenomenon where light (photo) causes the generation of electricity (electric).
Think of 'light' ('photo-') causing 'electricity' — that's what photoelectric means.