Clupea harangus clu·pea·ha·rangus uncommon noun 1. commercially important food fish of northern waters of both Atlantic and Pacific SynonymsherringClupea harangus Related words Broader terms clupeid fishfood fish Narrower terms Atlantic herringPacific herring Parts Clupea Part of herring WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.