optic
IPA: ˈɑptɪk
noun
- (archaic, humorous) An eye.
- (optics) A lens or other part of an optical instrument that interacts with light.
- (trademark in UK) A measuring device with a small window, attached to an upside-down bottle, used to dispense alcoholic drinks in a bar.
adjective
- (relational) Of, or relating to the eye or to vision.
- (optics, relational) Of, or relating to optics or optical instruments.
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Examples of "optic" in Sentences
- The midbrain bears swellings that are particularly concerned with the sense of sight and are therefore termed the optic lobes ( "sight" G).
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
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