1. (submerged marine plant with very long narrow leaves found in abundance along North Atlantic coasts)
eelgrass, grass wrack, sea wrack, Zostera marina
synonim: zostera morska
synonim: tasiemnica morska

2. (any of various seaweeds that grow underwater in shallow beds
"seagrass provides a protective environment in which young fish can develop")
seagrass: :