hydrotropism

[ hahy-dro-truh-piz-uhm ]

noun

, Biology.

1. oriented growth in response to water.

hydrotropism

/ ˌhaɪdrəʊˈtrɒpɪk; haɪˈdrɒtrəˌpɪzəm /

noun

1. the directional growth of plants in response to the stimulus of water

hydrotropism

/ hī-drŏt′rə-pĭz′əm /

1. The growth or movement of a fixed organism, especially a plant, or a part of an organism toward or away from water. Roots often display hydrotropism in growing towards a water source.

Derived Forms

• hydrotropic, adjective
• ˌhydroˈtropically, adverb

Word History and Origins

Origin of hydrotropism¹

First recorded in 1880–85; hydro- ¹ + -tropism