IPA: /ɪˈpɪstəmi/
KK: /ɪˈpɪstəmi/
A structure that covers or is located in front of the mouth of certain invertebrates, such as bryozoans and some crustaceans.
The epistome helps protect the mouth of the bryozoan from debris in the water.
Epistome is derived from the Greek "epi-" (meaning upon) and "stoma" (meaning mouth). The term refers to a structure that is located upon or over the mouth, particularly in certain biological contexts.
Think of something that is 'upon' ('epi-') the 'mouth' ('stoma') — this helps you remember that an epistome is a structure located over the mouth.