1. Noun
A right line drawn or extending from the center of a circle to the periphery; the semidiameter of a circle or sphere.
2. Noun
The preaxial bone of the forearm, or brachium, corresponding to the tibia of the hind limb. See Illust. of Artiodactyla.
3. Noun
A ray, or outer floret, of the capitulum of such plants as the sunflower and the daisy. See Ray, 2.
4. Noun
The barbs of a perfect feather.
5. Noun
Radiating organs, or color-markings, of the radiates.
6. Noun
The movable limb of a sextant or other angular instrument.
7. Noun
The distance from the center of a circle to any point on its circumference
8. Noun
a circular region whose area is indicated by the length of its radius; "they located it within a radius of 2 miles"
Vocabulary classified under Geography
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