RADII

RADIUS

spoke, wheel spoke, radius

(noun) support consisting of a radial member of a wheel joining the hub to the rim

radius

(noun) the length of a line segment between the center and circumference of a circle or sphere

radius

(noun) the outer and slightly shorter of the two bones of the human forearm

radius

(noun) a circular region whose area is indicated by the length of its radius; “they located it within a radius of 2 miles”

radius

(noun) a straight line from the center to the perimeter of a circle (or from the center to the surface of a sphere)

Source: WordNet® 3.1


Noun

radii

plural of radius

Anagrams

• ariid

Source: Wiktionary


Ra"di*i, n.,

Definition: pl. of Radius.

RADIUS

Ra"di*us, n.; pl. L. Radii; E. Radiuses. Etym: [L., a staff, rod, spoke of a wheel, radius, ray. See Ray a divergent line.]

1. (Geom.)

Definition: A right line drawn or extending from the center of a circle to the periphery; the semidiameter of a circle or sphere.

2. (Anat.)

Definition: 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.)

Definition: A ray, or outer floret, of the capitulum of such plants as the sunflower and the daisy. See Ray, 2.

4. pl. (Zoöl.) (a) The barbs of a perfect. (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.

Source: Webster’s Unabridged Dictionary 1913 Edition



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Word of the Day

25 March 2025

IMMOBILIZATION

(noun) fixation (as by a plaster cast) of a body part in order to promote proper healing; “immobilization of the injured knee was necessary”


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Coffee Trivia

Contrary to popular belief, coffee beans are not technically beans. They are referred to as such because of their resemblance to legumes. A coffee bean is a seed of the Coffea plant and the source for coffee. It is the pit inside the red or purple fruit, often referred to as a cherry. Just like ordinary cherries, the coffee fruit is also a so-called stone fruit.

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