Perpendicular

per-pen-dth'u-lar, adj. exactly upright extending m a straight line toward the centre of the earth \gcom.) at right angles to a given line or surface a perpeudiculai line or plane. adv. Perpendicularly. Perpendicular'ity, stale of being perpendicular. [Fr. —L perpendicular is—pcipctidu uhtnt, a plumb line—-per, through, and pen do, to weigh