D defs.my
Entry 1 sense Webster, 1913

Macrocystis

· Mac·ro·cys·tis · IPA
01 n. An immensely long blackish seaweed of the Pacific (Macrocystis pyrifera), having numerous almond-shaped air vessels.
  1. 1.
    An immensely long blackish seaweed of the Pacific (Macrocystis pyrifera), having numerous almond-shaped air vessels.(Bot.)