from
The Collaborative International Dictionary of English v.0.48
Perspective \Per*spec"tive\ (p[~e]r*sp[e^]k"t[i^]v), a. [L.
perspicere, perspectum, to look through; per + spicere,
specere, to look: cf. F. perspectif; or from E. perspective,
n. See {Spy}, n.]
1. Of or pertaining to the science of vision; optical. [Obs.]
--Bacon.
[1913 Webster]
2. Pertaining to the art, or in accordance with the laws, of
perspective.
[1913 Webster]
{Perspective plane}, the plane or surface on which the
objects are delineated, or the picture drawn; the plane of
projection; -- distinguished from the {ground plane},
which is that on which the objects are represented as
standing. When this plane is oblique to the principal face
of the object, the perspective is called {oblique
perspective}; when parallel to that face, {parallel
perspective}.
{Perspective shell} (Zool.), any shell of the genus
{Solarium} and allied genera. See {Solarium}.
[1913 Webster]