1. The plural of geotropism; the growth or movement of organisms (especially plants) in response to the force of gravity.
Usage: biology; botany; technical

Examples

• Plant roots exhibit positive geotropisms, growing downward toward the center of the Earth.
• The geotropisms of seedlings ensure that roots develop in the soil and shoots grow upward.
• Scientists study geotropisms to understand how plants sense and respond to gravity.
• Different plant species show varying degrees of geotropisms depending on their environmental adaptations.
• Geotropisms are controlled by the hormone auxin, which redistributes in response to gravitational pull.