/ Dictionary / Index L laminaria: Meaning and Definition of Find definitions for: lam•i•nar•i•a Pronunciation: (lam"u-nâr'ē-u), [key] — n. any of various often very large kelps of the genus Laminaria, some species of which are the source of algins used as thickening or stabilizing agents in foodstuffs and other products. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: laminaria (Thesaurus) laminar flow laminate Related Content Daily Word Quiz: arboreal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language