IPA: /ˌbaɪˈfʌŋkʃənl/
KK: /baɪˈfʌŋkʃənl/
Describing something that has two different functions or roles.
The bifunctional enzyme can catalyze two different reactions in the cell.
Bifunctional → It is formed from "bi-" (meaning two) and "functional" (from Latin "functio", meaning performance or execution). The word "bifunctional" describes something that has two functions or performs two tasks.
Think of 'bi-' meaning two, and 'functional' relating to performance — so bifunctional means something that performs two tasks.