- focal line posterior
- a line whose direction is perpendicular to the meridian of least curvature of a refracting surface.
Medical dictionary. 2011.
focal line posterior
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optics — /op tiks/, n. (used with a sing. v.) the branch of physical science that deals with the properties and phenomena of both visible and invisible light and with vision. [1605 15; < ML optica < Gk optiká, n. use of neut. pl. of OPTIKÓS; see OPTIC,… … Universalium
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