trophonema
noun
troph·o·ne·ma
| \ ˌträfəˈnēmə\
plural trophonemata\ -ˈnēmətə -ˈnem- \
Definition of trophonema
: one of the glandular filaments that develop from the inner uterine surface in viviparous elasmobranchs and secrete a nutritive fluid for the embryo
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