Lexic.us

Definition of Tropism

1. Noun. An involuntary orienting response; positive or negative reaction to a stimulus source.

Definition of Tropism

1. n. Modification of the direction of growth.

Definition of Tropism

1. the involuntary response of an organism to an external stimulus [n -S]

Medical Definition of Tropism

1. The movement of an organism in response to an external source of stimulus, usually toward or away from it. Examples of stimuli are light, heat, food, or chemicals. (09 Oct 1997)

Lexicographical Neighbors of Tropism

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