Definitions of tropism [ˈtroʊ pɪz əm]

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Definition of 'tropism'

Random House Webster's College Dictionary

1. (n.) tropism
the orientation of an organism toward or away from a stimulus, as light.

Etymology: (1895–1900; independent use of -tropism)

Definition of 'tropism'

Princeton's WordNet

1. (noun) tropism
an involuntary orienting response; positive or negative reaction to a stimulus source

Definition of 'tropism'

U.S. National Library of Medicine

1. tropism
The directional growth of an organism in response to an external stimulus such as light, touch, or gravity. Growth towards the stimulus is a positive tropism; growth away from the stimulus is a negative tropism. (From Concise Dictionary of Biology, 1990)

'tropism' - Nearby Entries
tropics tropidoclonion tropidoclonion lineatum tropism troponomy troponym troponymy

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