straight line

Từ điển WordNet v3.1 - WordNet Dictionary

noun

a line traced by a point traveling in a constant direction;
a line of zero curvature (Freq. 7)
- the shortest distance between two points is a straight line
• Ant:
curve
• Hypernyms:
line
• Hyponyms:
perpendicular, asymptote, tangent, secant, radius,
diameter, chord, element, diagonal, bias, vector