zigˌnēməˈtāsēˌē noun plural
Usage: capitalized
Etymology: New Latin, from Zygnemat-, Zygnema, type genus + -aceae
: a family of common freshwater algae (order Zygnematales) often forming bright green slimy masses in stagnant or running water and consisting of unbranched cylindrical filaments with green chromatophores arranged in spiral bands, stars, or rarely straight bands — see spirogyra, zygnema
• zyg·ne·ma·ta·ceous ̷ ̷| ̷ ̷ ̷ ̷|tāshəs adjective