1. the SI unit of force, equal to the force that would give a mass of one kilogram an acceleration of one meter per second squared
Usage: physics; scientific

Examples

• The force required to lift the book was measured in newtons.
• One newton equals approximately 0.225 pounds of force.
• The spring constant was calculated as 50 newtons per meter.
• The physicist measured the gravitational force in newtons.
• The engine produces a thrust of 2000 newtons.
• Students learned to convert pounds to newtons in physics class.