adjective. Of or relating to the eye or vision.

adjective. Of or relating to the science of optics or optical equipment.

noun. An eye.

noun. Any of the lenses, prisms, or mirrors of an optical instrument.

Relating or pertaining to vision or sight; visual; subservient to the faculty or function of seeing.

Of or pertaining to the eye as the organ of vision; ocular; ophthalmic.

Relating to the science of optics.

The angle which the visual axes of the eyes make with one another as they tend to meet at some distance before the eyes.

The angle between the optic axes in a biaxial crystal.

The line in a doubly refracting crystal in the direction of which no double refraction occurs. Crystals belonging to the tetragonal and hexagonal systems have a single optic axis, coincident with their vertical crystallographical axis: hence they are said to be uniaxial. Crystals belonging to the orthorhombic, monoclinic, and triclinic systems have two optic axes, and hence are biaxial.

Synonyms Optic, Optical. The former is chiefly said of the anatomy of the eye and of the physiology of vision, the latter chiefly of the science of optics: as, optic nerve, tract, lobe; optical angle, center, effect.

noun. The eye.

noun. An eye-glass; a magnifying glass.

adjective. Of, pertaining to, or using vision or sight.

adjective. Of or pertaining to the eye; ocular. See Illust. of Brain, and Eye.

adjective. Relating to the science of optics or to devices designed to assist vision.

adjective. the angle included between the optic axes of the two eyes when directed to the same point; -- sometimes called binocular parallax.

adjective. The line in a doubly refracting crystal, in the direction of which no double refraction occurs. A uniaxial crystal has one such line, a biaxial crystal has two.

adjective. a graduated circle used for the measurement of angles in optical experiments.

adjective. a surveyor's instrument with reflectors for laying off right angles.

noun. The organ of sight; an eye.

noun. An eyeglass.

adjective. Of, or relating to the eye or to vision.

adjective. Of, or relating to optics or optical instruments.

noun. An eye.

noun. A lens or other part of an optical instrument that interacts with light.

noun. A measuring device with a small window, attached to an upside-down bottle, used to dispense alcoholic drinks in a bar.

adjective. relating to or using sight

noun. the organ of sight

adjective. of or relating to or resembling the eye

"The second pair are the optic nerves, which, under the name of the _optic tracts_, run down to the base of the brain, from which an optic nerve passes to each eyeball."

basal optic ganglion  brachia of the optic lobes  dispersion of the optic axes  optic angle  optic axis  

optical  

optical  optics  

receptor  sense organ  sensory receptor  

Od  compound eye  naked eye  ocellus  oculus dexter  

Coptic  Synoptic  synoptic  

acoustic  analog  astronomy  audio  auditory  

baby blues  banjo eyes  bright eyes  clear eyes  cornea  

brain  eye