märˌsilēˈāsēˌē noun plural
Usage: capitalized
Etymology: New Latin, from Marsilea, type genus + -aceae
: a family of water ferns that are heterosporous and have both microspores and megaspores in the same sporocarp — see marsilea
• mar·sil·e·a·ceous ̷ ̷| ̷ ̷ ̷ ̷|āshəs adjective