IPA: /ˈkɒn.sən.treɪ.tər/
KK: /kɒnˈsɛntrəˌtər/
A device or system that gathers and focuses something, such as sunlight or data, to improve efficiency or output.
The solar concentrator uses mirrors to focus sunlight onto a small area to generate heat.
Concentrator → It is formed from "con-" (meaning together) and "centrum" (meaning center) and the suffix "-ator" (meaning one who). The word "concentrator" refers to one who brings things together to a center or focuses them.
Think of someone who brings things "together" ('con-') to a "center" ('centrum') — that's why a concentrator is someone who focuses or centralizes.