| DRR | digitally reconstructed radiograph; Division of Research Resources [NIH]; dorsal root reflex |
|---|---|
| DRT | dorsal root, thoracic |
| EARR | extended aortic root replacement |
| NR | do not repeat [Lat. non repetatur]; nerve root; neural retina; neutral red; noise reduction; nonreac... |
| PAR | participating provider; passive avoidance reaction; perennial allergic rhinitis; photosynthetically ... |
| emersed plant | Plants growing with their roots and a portion of the shoot below the water and the remainder of the shoot above the surface of the water. (09 Oct 1997) |
|---|---|
| transgenic plant | Genetically engineered plantor offspring of genetically engineered plants. The transgenic plant usually contains material from at least one unrelated organisms, such as from a virus, animal, or other plant. (09 Oct 1997) |
| flax-plant | <botany> A plant in new Zealand (Phormium tenax), allied to the lilies and aloes. The leaves are two inches wide and several feet long, and furnish a fibre which is used for making ropes, mats, and coarse cloth. Source: Websters Dictionary (01 Mar 1998) |
| long-day plant | <botany> A plant that requires more than 12 hours of daylight before flowering will occur. (09 Oct 1997) |
| alum root | <botany> A North American herb (Heuchera Americana) of the Saxifrage family, whose root has astringent properties. Source: Websters Dictionary (01 Mar 1998) |
| anatomical root | That portion of a tooth extending from the cervical line to its apical extremity. (05 Mar 2000) |
| angelica root | The root of Angelica archangelica (family Umbelliferae); a tonic and stimulant that may cause nausea; used as a carminative, diuretic, and externally as a counterirritant. (05 Mar 2000) |
| anterior root | The motor root of a spinal nerve. Synonym: radix anterior, radix motoria, anterior root, motor root, radix ventralis. (05 Mar 2000) |
| aquatic root | <plant biology> Roots that develop on stems above the normal position occupied by roots, in response to prolonged inundation with water. (09 Oct 1997) |
| arched root | <botany> Roots produced on the plant stems in a position above the normal position of roots, which serve to brace the plant during and following periods of prolonged inundation with water. (09 Oct 1997) |
| black root | <botany> Dried rhizome and roots of Veronicastrum virginicum (family Serophulariaceae). Indigenous to North America. Formerly used as a cathartic. Synonym: black root, Culver's root. (05 Mar 2000) |
| vandal root | <botany> Any plant of the genus Valeriana. The root of the officinal valerian (V. Officinalis) has a strong smell, and is much used in medicine as an antispasmodic. <botany> Greek valerian, a plant (Polemonium caeruleum) with blue or white flowers, and leaves resembling those of the officinal valerian. Origin: LL. Valeriana, perhaps from some person named Valerius, or fr. L. Valere to be strong. Powerful, on account of its medicinal virtues: cf. F. Valeriane. Source: Websters Dictionary (01 Mar 1998) |
| ganglion cells of dorsal spinal root | Pseudounipolar nerve cell bodies in the ganglia of the dorsal spinal nerve roots; the sensory spinal nerves are composed of the peripheral axon branches of these sensory ganglion cell's, whereas the central axon branch of each such cell enters the spinal cord as a component of the dorsal root. (05 Mar 2000) |
| ventral root | The motor root of a spinal nerve. Synonym: radix anterior, radix motoria, anterior root, motor root, radix ventralis. (05 Mar 2000) |
| gentian root | See: gentian. (05 Mar 2000) |