What is another word for akeridae?
Pronunciation: [ˈakəɹˌɪdiː] (IPA) 
Akeridae is a family of sea urchins, but there are several similar words that can be used to refer to these organisms. One common synonym is "sand dollars," which are flattened, disk-shaped echinoderms that belong to the same family as urchins and starfish. Another synonym is "sea biscuits," which are thick, round urchins with a hard exoskeleton that allows them to survive in turbulent water conditions. Other relevant terms include "echinoids," which refer to all animals in the echinoderm phylum, and "test," which is the scientific term for the hard, protective outer layer of sea urchins and other echinoderms. Overall, there are many words that can be used to describe these fascinating creatures, but each one conveys its own unique perspective on their appearance, behavior, and ecological role.
