Definition of manatee grass in English:

manatee grass

noun

  • 1Thalassia testudinum (family Hydrocharitaceae), also called turtle-grass (rare).

  • 2Syringodium filiforme (Cymodocea manatorum) (family Cymodoceaceae).

Origin

Late 17th century; earliest use found in Hans Sloane (1660–1753), physician and collector.