[foh-tuh-trop-ik, -troh-pik]

adjective Botany.

growing toward or away from the light.
taking a particular direction under the influence of light.

Origin of phototropic

First recorded in 1895–1900; photo- + -tropic
Related formspho·to·trop·i·cal·ly, adverb Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for phototropic

Contemporary Examples of phototropic

  • For the past decade, he has used the phototropic properties of cyanobacteria to produce images in Petri dishes.

    The Daily Beast logo
    The Deadliest Art Ever

    Jaimie Etkin

    May 31, 2010

Historical Examples of phototropic