ˈ ̷ ̷ˌ ̷ ̷ˌ ̷ ̷ noun
: a very common submerged pondweed ( Potamogeton perfoliatus ) with broad clasping or perfoliate leaves and a terminal spike of greenish apetalous flowers
ˈ ̷ ̷ˌ ̷ ̷ˌ ̷ ̷ noun
: a very common submerged pondweed ( Potamogeton perfoliatus ) with broad clasping or perfoliate leaves and a terminal spike of greenish apetalous flowers
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012