/ Dictionary / Index L laminar flow: Meaning and Definition of Find definitions for: lam'inar flow' Pronunciation: [key] — Hydraul., Mech. Hydraul.,Mech. the flow of a viscous fluid in which particles of the fluid move in parallel layers, each of which has a constant velocity but is in motion relative to its neighboring layers. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. laminar laminaria Related Content Daily Word Quiz: tenacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language