From français-Deutsch FreeDict+WikDict dictionary ver. 2022.11.18: positron /po.zi.tʁɔ̃/ /pɔ.zi.tʁɔ̃/ <n, masc> Positron
positron /po.zi.tʁɔ̃/ /pɔ.zi.tʁɔ̃/ <n, masc> Positron