[かいそう;うみくさ;うみぐさ] /(n) (1) marine plant/seagrass/(2) (col) (See ) seaweed/EntL1201580X/
 かいそう [9]  {Bot.} Seegras; Seepflanze; Meerespflanze.  HE
Visszatérés a(z) „海草” laphoz.