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adj. Of or relating to the eye or vision.

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

n. An eye.

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

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

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

n. An eye.

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

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

n. The organ of sight; an eye.

n. An eyeglass.

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

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

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

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.

n. The eye.

n. An eye-glass; a magnifying glass.

adj. relating to or using sight

n. the organ of sight

adj. 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."

optical   

sense organ    receptor    sensory receptor   

optic nerves    optic papilla    optic neuritis    optic foramen    optic ganglia    brachia of the optic lobes    optic chiasm    optic disk    optic lobes    optic pad   

optical    optics   

brain    eye   

stemma    oculus dexter    os    ocellus    simple eye    Od    compound eye    naked eye    oculus sinister    peeper   

eye    eyeglass    ocular    visual   

Coptic    Synoptic    synoptic   

optical    fiber-optic    astronomy    chemistry    audio    electronic    electrical    neural    analog    acoustic