IPA: //ʌnˈkʌplər//
KK: /ʌnˈkʌplər/
A substance that disrupts the connection between the electron transport system and ATP synthesis, preventing energy production in cells.
The scientist used an uncoupler to study the effects on cellular respiration.
Uncoupler → It is formed from "un-" (meaning not or opposite of) and "coupler" (from the verb "couple", which comes from Latin "copulare", meaning to join or link). The word "uncoupler" refers to something that separates or disconnects things that were previously joined or linked.
Think of 'not joining' ('un-') something that was 'linked' ('couple'). This helps you remember that an uncoupler is something that separates or disconnects.