SINCE 1828
stratum spongiosum
noun
stratum spon·gi·o·sum
| \ -ˌspən-jē-ˈō-səm
\
\
plural strata spongiosa\ -sə
\
\
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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