Wordnet 3.0
NOUN (1)
1.
aquatic perennial of North America and Ireland and Hebrides having translucent green leaves in a basal spiral and dense buttonlike racemes of minute white flowers;
[syn: pipewort, Eriocaulon aquaticum]
The Collaborative International Dictionary of English v.0.48:
Pipewort \Pipe"wort`\, n. (Bot.)
Any plant of a genus (Eriocaulon) of aquatic or marsh herbs
with soft grass-like leaves.
[1913 Webster]
WordNet (r) 3.0 (2006):
pipewort
n 1: aquatic perennial of North America and Ireland and Hebrides
having translucent green leaves in a basal spiral and dense
buttonlike racemes of minute white flowers [syn:
pipewort, Eriocaulon aquaticum]