Dictionary entry details
• OCULUS (noun)
Meaning:
The organ of sight
Classified under:
Nouns denoting body parts
Synonyms:
eye; oculus; optic
Hypernyms ("oculus" is a kind of...):
receptor; sense organ; sensory receptor (an organ having nerve endings (in the skin or viscera or eye or ear or nose or mouth) that respond to stimulation)
Meronyms (parts of "oculus"):
crystalline lens; lens (biconvex transparent body situated behind the iris in the eye; it focuses light waves on the retina)
arteria centralis retinae; central artery of the retina (a branch of the ophthalmic artery; enters the eyeball with the optic nerve)
arteria ciliaris; ciliary artery (one of several arteries supplying the choroid coat of the eye)
arteria lacrimalis; lacrimal artery (an artery that originates from the ophthalmic artery and supplies the lacrimal gland and rectal eye muscles and the upper eyelid and the forehead)
lacrimal vein; vena lacrimalis (drains the lacrimal gland; empties into the superior ophthalmic vein)
lacrimal apparatus (the structures that secrete and drain tears from the eye)
retina (the light-sensitive membrane covering the back wall of the eyeball; it is continuous with the optic nerve)
sclera; sclerotic coat (whitish fibrous membrane (albuginea) that with the cornea forms the outer covering of the eyeball)
musculus sphincter pupillae; pupillary sphincter (a ring of smooth muscle surrounding the iris)
iris (muscular diaphragm that controls the size of the pupil; it forms the colored portion of the eye)
uvea (the part of the eye that contains the iris and ciliary body and choroid)
cornea (transparent anterior portion of the outer covering of the eye; it covers the lens and iris and is continuous with the sclera)
choroid; choroid coat (a highly vascular membrane in the eye between the retina and the sclera)
ciliary body (the part of the tunic of the eye between the choroid coat and the iris)
eyelid; lid; palpebra (either of two folds of skin that can be moved to cover or open the eye)
canthus (either of the corners of the eye where the upper and lower eyelids meet)
epicanthic fold; epicanthus (a vertical fold of skin over the nasal canthus; normal for Mongolian peoples; sometimes occurs in Down's syndrome)
nictitating membrane; third eyelid (a protective fold of skin in the eyes of reptiles and birds and some mammals)
conjunctiva (a transparent membrane covering the eyeball and under surface of the eyelid)
eyeball; orb (the ball-shaped capsule containing the vertebrate eye)
eye muscle; ocular muscle (one of the small muscles of the eye that serve to rotate the eyeball)
aperture (a natural opening in something)
Domain usage:
colloquialism (a colloquial expression; characteristic of spoken or written communication that seeks to imitate informal speech)
Hyponyms (each of the following is a kind of "oculus"):
naked eye (the eye unaided by any optical instrument that alters the power of vision or alters the apparent size or distance of objects)
peeper (an informal term refering to the eye)
oculus dexter; OD (the right eye)
oculus sinister; OS (the left eye)
ocellus; simple eye; stemma (an eye having a single lens)
compound eye (in insects and some crustaceans: composed of many light-sensitive elements each forming a portion of an image)
Holonyms ("oculus" is a part of...):
visual system (the sensory system for vision)
face; human face (the front of the human head from the forehead to the chin and ear to ear)
