Plural of pod: a long seed case of plants like peas and beans, or small self-contained units or groups.
Origin uncertain, but possibly from earlier 'cod' (seed vessel) around 1600s. The word expanded to mean any similar container, then metaphorically to closed groups or units.
The word 'pod' has become ultra-modern—from pea pods, it evolved to mean 'podcast,' those self-contained audio episodes, which is a perfect example of how old words get downloaded into new meanings!
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