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...

Smallage :: Smallage (n.) A biennial umbelliferous plant (Apium graveolens) native of the seacoats of Europe and Asia. When deprived of its acrid and even poisonous properties by cultivation, it becomes celery..

Plano-concave :: Plano-concave (a.) Plane or flat on one side, and concave on the other; as, a plano-concave lens. See Lens..

Ophthalmometer :: Ophthalmometer (n.) An instrument devised by Helmholtz for measuring the size of a reflected image on the convex surface of the cornea and lens of the eye, by which their curvature can be ascertained..

Decadency :: Decadency (n.) A falling away; decay; deterioration; declension. The old castle, where the family lived in their decadence..

Camera Obscura :: Camera obscura () An apparatus in which the image of an external object or objects is, by means of lenses, thrown upon a sensitized plate or surface placed at the back of an extensible darkened box or chamber variously modified; -- commonly called simply the camera..

Image :: Image (n.) The figure or picture of any object formed at the focus of a lens or mirror, by rays of light from the several points of the object symmetrically refracted or reflected to corresponding points in such focus; this may be received on a screen, a photographic plate, or the retina of the eye, and viewed directly by the eye, or with an eyeglass, as in the telescope and microscope; the likeness of an object formed by reflection; as, to see one's image in a mirror..

Sunglow :: Sunglass (n.) A convex lens of glass for producing heat by converging the sun's rays into a focus.

Microphotograph :: Microphotograph (n.) An enlarged representation of a microscopic object, produced by throwing upon a sensitive plate the magnified image of an object formed by a microscope or other suitable combination of lenses..

Piapec :: Piapec (n.) A West African pie (Ptilostomus Senegalensis).

Heteroclite :: Heteroclite (n.) A word which is irregular or anomalous either in declension or conjugation, or which deviates from ordinary forms of inflection in words of a like kind; especially, a noun which is irregular in declension..

Reversal :: Reversal (n.) The act of reversing; the causing to move or face in an opposite direction, or to stand or lie in an inverted position; as, the reversal of a rotating wheel; the reversal of objects by a convex lens..

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..

Doublet :: Doublet (a.) An arrangement of two lenses for a microscope, designed to correct spherical aberration and chromatic dispersion, thus rendering the image of an object more clear and distinct..

Gemul :: Gemul (n.) A small South American deer (Furcifer Chilensis), with simple forked horns..

Fabricate :: Fabricate (v. t.) To form by art and labor; to manufacture; to produce; as, to fabricate woolens..

Amasthenic :: Amasthenic (a.) Uniting the chemical rays of light into one focus, as a certain kind of lens; amacratic..

Wane :: Wane (n.) Decline; failure; diminution; decrease; declension.

Biconvex :: Biconvex (a.) Convex on both sides; as, a biconvex lens..

Variation :: Variation (n.) Change of termination of words, as in declension, conjugation, derivation, etc..

Stop :: Stop (n.) The diaphragm used in optical instruments to cut off the marginal portions of a beam of light passing through lenses.

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