IPA: //ˈsaɪtəʊˌtɒksɪn//
KK: /ˈsaɪtəˌtɒksɪn/
A substance that can harm or kill specific types of cells.
Researchers are studying the effects of cytotoxins on cancer cells to develop new treatments.
Cytotoxin → It is formed from "cyto-" (from Greek "kytos", meaning cell) and "toxin" (from Greek "toxikon", meaning poison). The word "cytotoxin" refers to a poison that affects or damages cells.
Think of a 'cell' ('cyto-') being harmed by a 'poison' ('toxin') — that's what cytotoxin means.