| NR | do not repeat [Lat. non repetatur]; nerve root; neural retina; neutral red; noise reduction; nonreac... |
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| PAR | participating provider; passive avoidance reaction; perennial allergic rhinitis; photosynthetically ... |
| PR | by way of the rectum [Lat. per rectum]; far point [of accommodation] [Lat. punctum remotum]; palindr... |
| rad | radiation absorbed dose; radial; radian; radical; radius; root [Lat. radix] |
| RC | an electronic circuit containing a resistor and capacitor in series; radiocarpal; reaction center; r... |
| yellow root | <botany> Any one of several plants with yellow roots. Specifically: See Xanthorhiza. Same as Orangeroot. Source: Websters Dictionary (01 Mar 1998) Previous: yellow mercury iodide, yellow nail, yellow nail syndrome, yellow precipitateNext: yellow root, yellows, yellowseed, yellowshins, yellow skinyellow root hydrastis |
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| lateral root of median nerve | <anatomy, nerve> The part of the median nerve arising from the lateral cord of the brachial plexus. Synonym: radix lateralis nervi mediani. (05 Mar 2000) |
| lateral root of optic tract | The larger division of the posterior end of the optic tract that terminates in the lateral geniculate body. Synonym: radix lateralis tractus optici. (05 Mar 2000) |
| long root of ciliary ganglion | Sensory fibres passing from the eyeball through the ciliary ganglion to their cell bodies in the trigeminal ganglion via the nasociliary nerve. Synonym: radix sensoria ganglii ciliaris, ramus communicans nervi nasociliaris cum ganglio ciliari, radix nasociliaris, long root of ciliary ganglion, nasociliary root, radix longa ganglii ciliaris. (05 Mar 2000) |