Resembling or related to daphnia water fleas; characteristic of the family Daphnidae.
From daphnia, the genus name, plus Greek -oid meaning 'resembling' or 'like.' Used in zoological classification to describe organisms similar to daphnia.
The term 'daphnioid' is important in aquatic ecology because it groups together organisms that play similar roles in food chains—knowing something is daphnioid tells you instantly it's a filter-feeding plankton!
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