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Not erect or perpendicular; neither parallel to, nor at right angles from, the base; slanting; inclined. It has a direction oblique to that of the former motion. Cheyne.

he condition of being oblique; deviation from a right line; deviation from parallelism or perpendicularity; the amount of such deviation; divergence; as, the obliquity of the ecliptic to the equator.

binocular parallax. -- Optic axis. (Opt.) (a) A line drawn through the center of the eye perpendicular to its anterior and posterior surfaces. In a normal eye it is in the direction of the optic axis that objects are most distinctly seen. (b) The line in a doubly refracting crystal, in the direction of which no double…

That point in which the three perpendiculars let fall from the angles of a triangle upon the opposite sides, or the sides produced, mutually intersect.

Having the front of the head, or the skull, nearly perpendicular, not retreating backwards above the jaws; -- opposed to Ant: prognathous. See Gnathic index, under Gnathic.

Perpendicularly; at right angles; as, a curve cuts a set of curves orthogonally.

ection, that projection which is made by drawing lines, from every point to be projected, perpendicular to the plane of projection. Such a projection of the sphere represents its circles as seen in perspective by an eye supposed to be placed at an infinite distance, the plane of projection passing through the center of…

eam engine whose cylinder oscillates on trunnions instead of being permanently fixed in a perpendicular or other direction. Weale.

Above the perpendicular height or length of, with an idea of measurement; as, the water, or the depth of water, was over his head, over his shoes.

One of the greater ordinaries, being a broad perpendicular stripe in an escutcheon, equally distant from the two edges, and occupying one third of it.

A perpendicular band upon an escutcheon, one half the breadth of the pale.

In the manner of a pale or pales; by perpendicular lines or divisions; as, to divide an escutcheon palewise.

Divided into four or more equal parts by perpendicular lines, and of two different tinctures disposed alternately.

To raise to a position perpendicular, or more nearly so; as, to peak oars, to hold them upright; to peak a gaff or yard, to set it nearer the perpendicular.

s. Pedal curve or surface (Geom.), the curve or surface which is the locus of the feet of perpendiculars let fall from a fixed point upon the straight lines tangent to a given curve, or upon the planes tangent to a given surface. -- Pedal note (Mus.), the note which is held or sustained through an organ point. See Org…

See Perpender.

Having the axis of the seed perpendicular to the axis of the pericarp to which it is attached.

See Perpender.

Perpendicular; vertical; conforming the direction of a line attached to a plumb; as, the wall is plumb.

Directly; suddenly; perpendicularly. "Fall plump." Beau. & Fl.