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