PERPENDICULARLY

perpendicularly

(adverb) in a perpendicular manner; “this red line runs perpendicularly to the green line”

sheer, perpendicularly

(adverb) straight up or down without a break

Source: WordNet® 3.1

Etymology

Adverb

perpendicularly (comparative more perpendicularly, superlative most perpendicularly)

In a perpendicular manner.

Source: Wiktionary

Per`pen*dic"u*lar*ly, adv.

Definition: In a perpendicular manner; vertically.

PERPENDICULAR

Per`pen*dic"u*lar, a. Etym: [L. perpendicularis, perpendicularius: cf. F. perpendiculaire. See Perpendicle, Pension.]

1. Exactly upright or vertical; pointing to the zenith; at right angles to the plane of the horizon; extending in a right line from any point toward the center of the earth.

2. (Geom.)

Definition: At right angles to a given line or surface; as, the line ad is perpendicular to the line bc. Perpendicular style (Arch.), a name given to the latest variety of English Gothic architecture, which prevailed from the close of the 14th century to the early part of the 16th; -- probably so called from the vertical style of its window mullions.

Per`pen*dic"u*lar, n.

1. A line at right angles to the plane of the horizon; a vertical line or direction.

2. (Geom.)

Definition: A line or plane falling at right angles on another line or surface, or making equal angles with it on each side.

Source: Webster’s Unabridged Dictionary 1913 Edition