FluentPlex

radius

/ˈɹeɪ.di.əs/ noun C1
  1. The long bone in the forearm, on the side of the thumb.
  2. The lighter bone (or fused portion of bone) in the forelimb of an animal.
  3. One of the major veins of the insect wing, between the subcosta and the media; the vein running along the costal edge of the discal cell.
  4. A line segment between any point of a circle or sphere and its center. · Fatima claims to have visited all the bars within a five-mile radius of her Manhattan apartment.
  5. The length of this line segment.
  6. Anything resembling a radius, such as the spoke of a wheel, the movable arm of a sextant, or one of the radiating lines of a spider's web.
  7. The minimum eccentricity of any vertex, for a given graph.

Plural radii

+ Save to review

From the library

You may take it from me that naval warfare becomes impossible within the radius of a Bruce-Partington’s operation.
Sherlock Holmes: The Bruce-Partington Plans, p. 8 · B2
That gives a radius of ten or twelve miles, and he does it once, or sometimes twice, a day.”
The Return of Sherlock Holmes, p. 116 · C1
Within a radius of five miles there are, as you see, only a very few scattered dwellings.
The Hound of the Baskervilles, p. 31 · C1
Candidates have to learn about twenty-five thousand streets within a six-mile radius of the center.
Mastering the Knowledge, p. 1 · B2

Other matches

Learn radius in real texts

With a free account, hover any word in the library for its meaning, hear it read aloud, save words for review timed to your memory, and see how much of each book you already know.

Create free account
Words, meanings, pronunciations and translations from Wiktionary (CC BY-SA 4.0); how common each word is from wordfreq. Made into this dictionary by FluentPlex.