Relating to or characteristic of the Acinetina family; pertaining to the acineta-related taxonomic group.
From 'acinetina' plus '-an' (relating to). This adjective extends the naming system further up the taxonomic hierarchy.
Stacking suffixes—'acineta' becomes 'acinetina' becomes 'acinetinan'—shows how scientists create increasingly specialized terminology for increasingly specific biological classifications, sometimes creating words only three people understand!
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