radius

• ambit
• boundary
• circuit
• circumference
• compass
• diameter
• equator
• expanse
• extension
• extent
• girth
• interval
• limit
• orbit
• perimeter
• periphery
• purview
• reach
• semidiameter
• space
• span
• spoke
• waistline

• noun
  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.
  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.

• The squirrel gathered nuts within the immediate radius of its nest.
• The city park had a playground with a large play area and a wide radius.
• The geologist studied rocks found within the geological radius of the volcano.
• The chef sourced ingredients from local farms within a 50-mile radius.
• The security system covered a wide radius around the facility to ensure safety.

earshot

year

panorama

range

ranges

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