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Definition of Gravitropism
1. Noun. (biology botany) a plant's ability to change its growth in response to gravity. ¹
¹ Source: wiktionary.com
Medical Definition of Gravitropism
1. Directional growth of a plant organ in response to a gravitational field roots grow downwards, shoots grow upwards. Achieved by differential growth on the sides of the root or shoot. A gravitation field is thought to be sensed by sedimentation of statoliths (starch grains) in root caps. This entry appears with permission from the Dictionary of Cell and Molecular Biology (11 Mar 2008)
Lexicographical Neighbors of Gravitropism
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