Optic

Word OPTIC
Character 5
Hyphenation op tic
Pronunciations /ˈɒptɪk/

Definitions and meanings of "Optic"

What do we mean by optic?

Of or relating to the eye or vision. adjective

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

An eye. noun

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

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.

The eye. noun

An eye-glass; a magnifying glass. noun

The organ of sight; an eye. noun

An eyeglass. noun

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

An eye.

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

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

Synonyms and Antonyms for Optic

The word "optic" in example sentences

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. ❋ Albert F. Blaisdell (N/A)

In fishes, reptiles, and birds they are hollow, and only two in number (corpora bigemina); they represent the superior colliculi of mammals, and are frequently termed the optic lobes, because of their intimate connection with the optic tracts. ❋ Unknown (1918)

McConnell enlisted in the Army Reserve in July 1967 at the height of the Vietnam War but received a medical discharge after less than six months for an eye condition called optic neuritis, according to limited information that has been made public. ❋ Unknown (2008)

The brain of a fish is very small, compared with the spinal cord into which it is continued, and with the nerves which come off from it: of the segments of which it is composed — the olfactory lobes, the cerebral hemisphere, and the succeeding divisions — no one predominates so much over the rest as to obscure or cover them; and the so-called optic lobes are, frequently, the largest masses of all. ❋ Unknown (2007)

The midbrain bears swellings that are particularly concerned with the sense of sight and are therefore termed the optic lobes ( "sight" G). ❋ Asimov, Isaac (1963)

These diverticula make their appearance before the closure of the anterior end of the neural tube; after the closure of the tube they are known as the optic vesicles. ❋ Unknown (1918)

For example, if a dog be deprived of one hemisphere, the eye which was supplied from it with nerve-fibres continues able to see, or to transmit impressions to the lower nerve-centre called the optic ganglion; for this eye will then mechanically follow the hand waved in front of it. ❋ George John Romanes (1871)

The brain of a fish is very small, compared with the spinal cord into which it is continued, and with the nerves which come off from it: of the segments of which it is composed -- the olfactory lobes, the cerebral hemisphere, and the succeeding divisions -- no one predominates so much over the rest as to obscure or cover them; and the so-called optic lobes are, frequently, the largest masses of all. ❋ Thomas Henry Huxley (1860)

In fact, the ganglionic corpuscles of each eye may be considered as constituting a little brain, connected with the masses behind by the commissure, commonly called the optic nerve. ❋ Oliver Wendell Holmes (1851)

The other subject is a 27-year-old man who lost his sight at 14 due to a form of blindness called optic nerve atrophy. ❋ Unknown (2011)

Glaucoma causes loss of sight by damaging a part of the eye called the optic nerve, which sends information from the eyes to the brain. ❋ Unknown (2010)

Cross Reference for Optic

What does optic mean?

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