replum

noun
rep·​lum | \ ˈrepləm\
plural repla\ -​lə \

Definition of replum

: a thin false dissepiment separating the two valves of some fruits (as siliques and some legumes) from which the valves fall away at maturity

History and Etymology for replum

Latin, part of a door (probably bolt for covering the gap in a folding door), from replēre to fill up

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