stratum spongiosum

noun
stratum spon·​gi·​o·​sum | \ -ˌspən-jē-ˈō-səm How to pronounce stratum spongiosum (audio) \
plural strata spongiosa\ -​sə How to pronounce strata spongiosa (audio) \

Medical Definition of stratum spongiosum

: the middle layer of the endometrium between the stratum basale and stratum compactum that contains dilated and tortuous portions of the uterine glands

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