Definition of Radii. Meaning of Radii. Synonyms of Radii

Here you will find one or more explanations in English for the word Radii. Also in the bottom left of the page several parts of wikipedia pages related to the word Radii and, of course, Radii synonyms and on the right images related to the word Radii.

Definition of Radii

Radii
Radii Ra"di*i, n., pl. of Radius.
Radii
Radius Ra"di*us, n.; pl. L. Radii; E. Radiuses. [L., a staff, rod, spoke of a wheel, radius, ray. See Ray a divergent line.] 1. (Geom.) A right line drawn or extending from the center of a circle to the periphery; the semidiameter of a circle or sphere. 2. (Anat.) The preaxial bone of the forearm, or brachium, corresponding to the tibia of the hind limb. See Illust. of Artiodactyla. Note: The radius is on the same side of the limb as the thumb, or pollex, and in man it so articulated that its lower end is capable of partial rotation about the ulna. 3. (Bot.) A ray, or outer floret, of the capitulum of such plants as the sunflower and the daisy. See Ray, 2. 4. pl. (Zo["o]l.) (a) The barbs of a perfect feather. (b) Radiating organs, or color-markings, of the radiates. 5. The movable limb of a sextant or other angular instrument. --Knight. Radius bar (Math.), a bar pivoted at one end, about which it swings, and having its other end attached to a piece which it causes to move in a circular arc. Radius of curvature. See under Curvature.

Meaning of Radii from wikipedia

- but also the spoke of a chariot wheel. The plural of radius can be either radii (from the Latin plural) or the conventional English plural radiuses. The...
- spheres with radii such that the sum of ionic radii of the cation and anion gives the distance between the ions in a crystal lattice. Ionic radii are typically...
- [citation needed] Atomic radii vary in a predictable and explicable manner across the periodic table. For instance, the radii generally decrease along...
- state and context. Atomic radii vary in a predictable and explicable manner across the periodic table. For instance, the radii generally decrease rightward...
- and Geophysics (IUGG) recommends three values: the arithmetic mean of the radii measured at the equator and the poles (R1); the authalic radius, which is...
- would be expected on the basis of the sum of covalent radii. Tabulated values of covalent radii are either average or idealized values, which nevertheless...
- molecule). The van der Waals volume may be calculated if the van der Waals radii (and, for molecules, the inter-atomic distances and angles) are known. For...
- periodic tables. Atomic radii vary in a predictable and explainable manner across the periodic table. For instance, the radii generally decrease along...
- The lanthanide contraction is the greater-than-expected decrease in ionic radii of the elements in the lanthanide series from atomic number 57, lanthanum...
- the 2010s. Solar Orbiter (as close as 45 Solar radii, Rs) Parker Solar Probe (as close as 9 Solar radii, Rs) Astronomical unit Orders of magnitude (length)...
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