Definition of Surfaces. Meaning of Surfaces. Synonyms of Surfaces
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Definition of Surfaces
surfacesImaginary Im*ag"i*na*ry, a. [L. imaginarius: cf. F.
Existing only in imagination or fancy; not real; fancied;
Wilt thou add to all the griefs I suffer Imaginary ills
and fancied tortures? --Addison.
Imaginary calculus See under Calculus.
Imaginary expression or quantity (Alg.), an algebraic
expression which involves the impossible operation of
taking the square root of a negative quantity; as,
[root]-9, a + b [root]-1.
Imaginary points, lines, surfaces, etc. (Geom.),
points, lines, surfaces, etc., imagined to exist, although
by reason of certain changes of a figure they have in fact
ceased to have a real existence.
Syn: Ideal; fanciful; chimerical; visionary; fancied; unreal;
Adjusting plane Adjusting plane or surface surface
A small plane or surface, usually capable of adjustment but
not of manipulation, for preserving lateral balance in an
a["e]roplane or flying machine.
surfacePedal Pe"dal, a. [L. pedalis, fr. pes, pedis, foot. See
Foot, and cf. Pew.]
1. Of or pertaining to the foot, or to feet, literally or
figuratively; specifically (Zo["o]l.), pertaining to the
foot of a mollusk; as, the pedal ganglion.
2. Of or pertaining to a pedal; having pedals.
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
Pedal note (Mus.), the note which is held or sustained
through an organ point. See Organ point, under Organ.
Pedal organ (Mus.), an organ which has pedals or a range of
keys moved by the feet; that portion of a full organ which
is played with the feet. SurfaceSurface Sur"face`, n. [F. See Sur-, and Face, and cf.
1. The exterior part of anything that has length and breadth;
one of the limits that bound a solid, esp. the upper face;
superficies; the outside; as, the surface of the earth;
the surface of a diamond; the surface of the body.
The bright surface of this ethereous mold. --Milton.
2. Hence, outward or external appearance.
Vain and weak understandings, which penetrate no
deeper than the surface. --V. Knox.
3. (Geom.) A magnitude that has length and breadth without
thickness; superficies; as, a plane surface; a spherical
4. (Fort.) That part of the side which is terminated by the
flank prolonged, and the angle of the nearest bastion.
Caustic surface, Heating surface, etc. See under
Caustic, Heating, etc.
Surface condensation, Surface condenser. See under
Condensation, and Condenser.
Surface gauge (Mach.), an instrument consisting of a
standard having a flat base and carrying an adjustable
pointer, for gauging the evenness of a surface or its
height, or for marking a line parallel with a surface.
Surface grub (Zo["o]l.), the larva of the great yellow
underwing moth (Triph[oe]na pronuba). It is often
destructive to the roots of grasses and other plants.
Surface plate (Mach.), a plate having an accurately dressed
flat surface, used as a standard of flatness by which to
test other surfaces.
Surface printing, printing from a surface in relief, as
from type, in distinction from plate printing, in which
the ink is contained in engraved lines. SurfaceSurface Sur"face, v. t. [imp. & p. p. Surfaced; p. pr. & vb.
1. To give a surface to; especially, to cause to have a
smooth or plain surface; to make smooth or plain.
2. To work over the surface or soil of, as ground, in hunting
for gold. surfaceCylindric Cy*lin"dric (s?-l?n"dr?k), Cylindrical
Cy*lin"dric*al (-dr?-kal), a. [Gr. kylindriko`s, from
ky`lindros cylinder: cf. F. cylindrique.]
Having the form of a cylinder, or of a section of its convex
surface; partaking of the properties of the cylinder.
Cylindrical lens, a lens having one, or more than one,
Cylindric, or Cylindrical, surface (Geom.), a surface
described by a straight line that moves according to any
law, but so as to be constantly parallel to a given line.
Cylindrical vault. (Arch.) See under Vault, n.
Meaning of Surfaces from wikipedia
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