| operative |
being in force or having or exerting force; "operative regulations"; "the major tendencies operative in the American political system" of or relating to a surgical operation; "operative surgery" surgical: relating to or requiring or amenable to treatment by surgery especially as opposed to medicine; "a surgical appendix"; "a surgical procedure"; "operative dentistry" secret agent: a person secretly employed in espionage for a government effective; producing a desired effect; "the operative word" private detective: someone who can be employed as a detective to collect information running(a): (of e.g. a machine) performing or capable of performing; "in running (or working) order"; "a functional set of brakes"
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| optic chiasm |
optic chiasma: the crossing of the optic nerves from the two eyes at the base of the brain
Ãâó: wordnet.princeton.edu/perl/webwn
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| optic cup |
(embryology) a two-walled cuplike depression that develops into the pigmented and sensory layers of the retina
Ãâó: wordnet.princeton.edu/perl/webwn
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| operator gene |
a gene that activates the production of messenger RNA by adjacent structural genes
Ãâó: wordnet.princeton.edu/perl/webwn
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| optic disk |
blind spot: the point where the optic nerve enters the retina; not sensitive to light
Ãâó: wordnet.princeton.edu/perl/webwn
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