Zoomastigina zoo·mas·ti·gina uncommon noun 1. in some classifications considered a phylum of the kingdom Protista; holozoic or saprozoic flagellates Synonymssubclass Zoomastigina Related words Broader terms class Parts Mastigophora Part of zoomastigoteHypermastiginaPolymastigina WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.