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 optical is as below...

Eyepiece :: Eyepiece (n.) The lens, or combination of lenses, at the eye end of a telescope or other optical instrument, through which the image formed by the mirror or object glass is viewed..

Omphaloptic :: Omphaloptic (n.) An optical glass that is convex on both sides.

Spectroscope :: Spectroscope (n.) An optical instrument for forming and examining spectra (as that of solar light, or those produced by flames in which different substances are volatilized), so as to determine, from the position of the spectral lines, the composition of the substance..

Staurotide :: Stauroscope (n.) An optical instrument used in determining the position of the planes of light-vibration in sections of crystals.

Optically :: Optically (adv.) By optics or sight; with reference to optics.

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..

Catoptron :: Catoptron (n.) A reflecting optical glass or instrument; a mirror.

Synoptic :: Synoptical (a.) Affording a general view of the whole, or of the principal parts of a thing; as, a synoptic table; a synoptical statement of an argument..

Optical :: Optical (a.) Of or pertaining to vision or sight.

Define :: Define (v. t.) To determine with precision; to mark out with distinctness; to ascertain or exhibit clearly; as, the defining power of an optical instrument..

Thaumatrope :: Thaumatrope (n.) An optical instrument or toy for showing the presistence of an impression upon the eyes after the luminous object is withdrawn.

Zoetrope :: Zoetrope (n.) An optical toy, in which figures made to revolve on the inside of a cylinder, and viewed through slits in its circumference, appear like a single figure passing through a series of natural motions as if animated or mechanically moved..

Microscope :: Microscope (n.) An optical instrument, consisting of a lens, or combination of lenses, for making an enlarged image of an object which is too minute to be viewed by the naked eye..

Autoptical :: Autoptical (a.) Seen with one's own eyes; belonging to, or connected with, personal observation; as, autoptic testimony or experience..

Aperture :: Aperture (n.) The diameter of the exposed part of the object glass of a telescope or other optical instrument; as, a telescope of four-inch aperture..

Perspicil :: Perspicil (n.) An optical glass; a telescope.

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

Stereoscopic :: Stereoscope (n.) An optical instrument for giving to pictures the appearance of solid forms, as seen in nature. It combines in one, through a bending of the rays of light, two pictures, taken for the purpose from points of view a little way apart. It is furnished with two eyeglasses, and by refraction or reflection the pictures are superimposed, so as to appear as one to the observer..

Inactose :: Inactose (n.) A variety of sugar, found in certain plants. It is optically inactive..

Phoneidoscope :: Phoneidoscope (n.) An instrument for studying the motions of sounding bodies by optical means. It consists of a tube across the end of which is stretched a film of soap solution thin enough to give colored bands, the form and position of which are affected by sonorous vibrations..

Random Fonts

Most Popular