Root-of-unity
noun, Mathematics.
1.
a complex number that when raised to some positive integral power results in 1.
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- Root-position
noun, Music. 1. the position of a triad in which the root is in the bass. root position noun 1. (music) the vertical distribution of the written notes of a chord in which the root of the chord is in the bass See position (sense 12a), inversion (sense 5a)
- Root-pressure
noun, Botany. 1. osmotic pressure within the cells of a root system that causes sap to rise through a plant stem to the leaves. root pressure Pressure produced in the roots of plants, causing exudation of sap from cut stems and guttation of water from leaves. The pressure is generated by the concentration of solutes […]
- Root resection
root resection n. See apicoectomy.
- Root-rot
noun, Plant Pathology. 1. a symptom or phase of many diseases of plants, characterized by discoloration and decay of the roots. 2. any disease so characterized.
- Roots
noun 1. a part of the body of a plant that develops, typically, from the radicle and grows downward into the soil, anchoring the plant and absorbing nutriment and moisture. 2. a similar organ developed from some other part of a plant, as one of those by which ivy clings to its support. 3. any […]