1. the growth or movement of a plant in response to gravity
Usage: biology

Examples

• Plant roots exhibit positive geotropism by growing downward toward the center of the earth.
• The stems of seedlings show negative geotropism as they grow upward against gravity.
• Geotropism helps plants orient themselves properly in their environment.
• Scientists studied geotropism by observing how plants respond when rotated horizontally.
• The sunflower’s roots demonstrated clear geotropism despite being planted upside down.
• Geotropism is an important factor in how plants establish their root systems.