1. (noun) a line traced by a point traveling in a constant direction; a line of zero curvature

• asymptote
• bias
• diagonal
• chord
• diagonal
• diameter
• element
• perpendicular
• radius
• secant
• tangent
• vector

1. (noun) a line traced by a point traveling in a constant direction; a line of zero curvature

• line

1. (noun) a line traced by a point traveling in a constant direction; a line of zero curvature

• curve
• curved shape