IPA: /ˌhɛtəroʊˈθælɪzəm/
KK: /hɛtəroʊˈθælɪzəm/
A biological term that refers to the condition where two different mating types are required for sexual reproduction in certain organisms, such as fungi and algae.
Heterothallism is important for genetic diversity in some species of fungi.
Heterothallism → It is formed from "hetero-" (from Greek "heteros", meaning different) and "thallus" (from Greek "thallos", meaning a young shoot or twig). The term describes a reproductive strategy in fungi and algae where different mating types are required for sexual reproduction, hence the concept of 'different' ('hetero-') reproductive structures ('thallus').
Think of 'different' ('hetero-') reproductive types in organisms that need to come together to reproduce, which is what heterothallism describes.
No commonly confused words.