Referring to the p. region.
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pre·op·tic .prē-'äp-tik adj situated in front of an optic part or region <\preoptic tracts in the brain>
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pre·op·tic (pre-opґtik) anterior to the optic chiasma.Medical dictionary. 2011.
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pre·op·tic (pre-opґtik) anterior to the optic chiasma.Medical dictionary. 2011.