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Definition of lens
Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of lens is as below...
Lens (n.) A piece of
glass,
or other
transparent
substance,
ground
with two
opposite
regular
surfaces,
either
both
curved,
or one
curved
and the other
plane,
and
commonly
used,
either
singly
or
combined,
in
optical
instruments,
for
changing
the
direction
of rays of
light,
and thus
magnifying
objects,
or
otherwise
modifying
vision.
In
practice,
the
curved
surfaces
are
usually
spherical,
though
rarely
cylindrical,
or of some other
figure..
Lern More About Lens
☛ Wiki Definition of Lens
☛ Wiki Article of Lens
☛ Google Meaning of Lens
☛ Google Search for Lens
Flection
::
Flection
(n.) The
variation
of words by
declension,
comparison,
or
conjugation;
inflection..
Collimator
::
Collimator
(n.) A tube
having
a
convex
lens at one end and at the other a small
opening
or slit which is at the
principal
focus of the lens, used for
producing
a beam of
parallel
rays; also, a lens so
used..
Periscope
::
Periscope
(n.) an
optical
instrument
of
tubular
shape
containing
an
arrangement
of
lenses
and
mirrors
(or
prisms),
allowing
a
person
to
observe
a field of view
otherwise
obstructed,
as
beyond
an
obstructing
object
or (as in
submarines)
above the
surface
of the
water..
Achromatism
::
Achromatism
(n.) The state or
quality
of being
achromatic;
as, the
achromatism
of a lens;
achromaticity..
Bruiser
::
Bruiser
(n.) A
concave
tool used in
grinding
lenses
or the
speculums
of
telescopes.
Altiscope
::
Altiscope
(n.) An
arrangement
of
lenses
and
mirrors
which
enables
a
person
to see an
object
in spite of
intervening
objects.
Astigmatism
::
Astigmatism
(n.) A
defect
of the eye or of a lens, in
consequence
of which the rays
derived
from one point are not
brought
to a
single
focal
point,
thus
causing
imperfect
images
or
indistinctness
of
vision..
Mercer
::
Mercer
(n.)
Originally,
a
dealer
in any kind of goods or
wares;
now
restricted
to a
dealer
in
textile
fabrics,
as silks or
woolens..
Descension
::
Descension
(n.) The act of going
downward;
descent;
falling
or
sinking;
declension;
degradation.
Diaphanoscope
::
Diaphanoscope
(n.) A dark box
constructed
for
viewing
transparent
pictures,
with or
without
a
lens..
Defective
::
Defective
(a.)
Lacking
some of the usual forms of
declension
or
conjugation;
as, a
defective
noun or
verb..
Flexion
::
Flexion
(n.)
Syntactical
change
of form of
words,
as by
declension
or
conjugation;
inflection..
Fresnel Lens
::
Fresnel
lens () See under Lens.
Bonito
::
Bonito
(n.) The
skipjack
(Sarda
Mediterranea)
of the
Atlantic,
an
important
and
abundant
food fish on the coast of the
United
States,
and (S.
Chilensis)
of the
Pacific,
and other
related
species.
They are large and
active
fishes,
of a blue color with black
oblique
stripes..
Opsiometer
::
Opsiometer
(n.) An
instrument
for
measuring
the
limits
of
distincts
vision
in
different
individuals,
and thus
determiming
the
proper
focal
length
of a lens for
correcting
imperfect
sight..
Capsule
::
Capsule
(n.) A
membranous
sac
containing
fluid,
or
investing
an organ or
joint;
as, the
capsule
of the lens of the eye. Also, a
capsulelike
organ..
Dry Goods
::
Dry goods () A
commercial
name for
textile
fabrics,
cottons,
woolens,
linen,
silks,
laces,
etc., -- in
distinction
from
groceries..
Plano-concave
::
Plano-concave
(a.) Plane or flat on one side, and
concave
on the
other;
as, a
plano-concave
lens. See
Lens..
Spectacle
::
Spectacle
(n.) An
optical
instrument
consisting
of two
lenses
set in a light
frame,
and worn to
assist
sight,
to
obviate
some
defect
in the
organs
of
vision,
or to
shield
the eyes from
bright
light..
Dill
::
Dill (n.) An herb
(Peucedanum
graveolens),
the seeds of which are
moderately
warming,
pungent,
and
aromatic,
and were
formerly
used as a
soothing
medicine
for
children;
--
called
also
dillseed..
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