Definitions of pod. noun. the vessel that contains the seeds of a plant (not the seeds themselves) synonyms: cod, seedcase. see more. noun. a several-seeded dehiscent fruit as e.g. of a leguminous plant. synonyms: seedpod. see more. The meaning of POD is an elongated dry fruit that develops from one or more carpels of a flower, splits open along a seam, and contains seeds that may be attached to the wall of the pod : seedpod; especially : the pod of a plant (such as a pea or bean) of the legume family : legume. How to use pod in a sentence. Find out what is the full meaning of POD on Abbreviations.com! 'Print On Demand' is one option -- Nwxg96.