LAMINARIA

[lam.i.nar.ia] n [NL, fr. L lamina] (1848): any of a genus (Laminaria) of large chiefly perennial kelps with an unbranched cylindrical or flattened stipe and a smooth or convoluted blade; broadly: any of various related kelps (order Laminariales) -- lam.i.nar.i.an adj or n