OBSERVATIONAL ERROR

the veering away of a seen value from the authentic value.

OBTURATOR

1. any object which obstructs an opening. 2. a prosthesis placed inside the mouth to seal an opening in the palate.

OCCUPATIONAL CRAMP

painful muscle spasms, generally in the arm or hand, which inhibits the person from participating in their profession, like writing, operating a vehicle, sewing,...

O'CONNOR V DONALDSON

a 1975 lawsuit in the U.S. Supreme Court wherein it was established that people can't be committed against their will to a facility...

OCULOMOTOR NERVE

the third cranial nerve, that consists of both sensory and motor fibers and innervates most of the muscles correlated with accommodation and movement of...

OFF-CENTER BIPOLAR CELL

a retinal bipolar cell which is hindered by light in the core of its receptive region, but is aroused by light in the surrounding...

OLFACTIE

noun. a unit for gauging odor magnitude, utilized to calibrate formative olfactometers. It is equal to the magnitude of an odorant which just surpasses...

OLFACTORY NERVE

the first cranial nerve, that carries sensory fibers regarding the sense of scent. It starts within the olfactory lobe and is dispersed to the...

OLIVOPONTOCEREBELLAR ATROPHY

a gradually progressive neurological disease marked by degeneration of neurons in the cerebellum, pons, and olivary nucleus. Signs of such range significantly among people...

ONEIRODYNIA

a type of dreaming marked by nightmares or unfavorable dreams.

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