Lines on a pie chart, e.g

• Straight sides of a pizza slice, e.g
• Pie chart lines, essentially
• They come from the center
• Spokes, essentially
• Projections from a central point
• Circle segments
• More than one spoke in excellent 11
• Bicycle spokes, for instance

WordNet Word definitions in WordNet
See radius

Wiktionary Word definitions in Wiktionary
n. (plural of radius English)