eelgrass

from WordNet (r) 3.0 (2006)

eelgrass
    n 1: submerged marine plant with very long narrow leaves found
         in abundance along North Atlantic coasts [syn: {eelgrass},
         {grass wrack}, {sea wrack}, {Zostera marina}]
    2: submerged aquatic plant with ribbonlike leaves; Old World and
       Australia [syn: {tape grass}, {eelgrass}, {wild celery},
       {Vallisneria spiralis}]

from The Collaborative International Dictionary of English v.0.48

Zostera \Zos"te*ra\, n. [NL.] (Bot.)
   A genus of plants of the {Naiadaceae}, or Pondweed family.
   {Zostera marina} is commonly known as {sea wrack}, and
   {eelgrass}.
   [1913 Webster]

from The Collaborative International Dictionary of English v.0.48

Eelgrass \Eel"grass`\, n. (Bot.)
   A plant ({Zostera marina}), with very long and narrow leaves,
   growing abundantly in shallow bays along the North Atlantic
   coast.
   [1913 Webster]

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