Laminaria

Origin

From the genus name.

Full definition of laminaria

Noun

1. Any of the genus Laminaria of brown algae.
• 1955, Rachel Carson, The Edge of the Sea, The stands of sea tangles and long-stalked laminarias are, in their way, an Atlantic counterpart of the great submarine jungles of the Pacific, where the kelps rise like giant forest trees, 150 feet from the floor of the sea to the surface.----