IPA: //ælˈɡɒlədʒɪst//
KK: /ælˈgɑlədʒɪst/
A person who studies algae, which are simple plants that grow in water and can be found in various environments.
The algologist conducted research on the effects of pollution on local algae populations.
Algologist → It is formed from "algos" (from Greek, meaning pain) and "-logist" (from Greek "logia", meaning one who studies). An algologist is someone who studies pain, particularly in the context of medicine or psychology.
Think of someone who studies 'pain' ('algos') — that's what an algologist does.