Definition of eelgrass
1
: a submerged long-leaved monocotyledonous marine plant (Zostera marina) that is found especially in coastal temperate waters and whose dried stems and leaves are used especially as packing material in woven goods
2
: tape grass
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Merriam-Webster unabridged
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Time Traveler for eelgrass
The first known use of eelgrass was in 1790
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