loddon pondweed lod·don·pond·weed uncommon noun 1. pondweed with floating leaves; of northern United States and Europe Synonymsloddon pondweedPotamogeton nodosusPotamogeton americanus Related words Broader terms pondweed Parts Potamogeton WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
