phototropic

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adjective

Having a tendency to move in response to light. An animal or microbe that is positively phototropic will move toward light. One that is negatively phototropic will move away from light.

Scrabble 20
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Meanings

adjectivephototropic (comparative more phototropic, superlative most phototropic)

comparative more phototropic · superlative most phototropic

  1. Having a tendency to move in response to light. An animal or microbe that is positively phototropic will move toward light. One that is negatively phototropic will move away from light.

Origin

From photo- + -tropic.

Full word history & related roots →

Translations

German fototrop, fototropisch
  • fototrophaving a tendency to move in response to light
  • fototropischhaving a tendency to move in response to light
Irish fótatrópach
  • fótatrópachhaving a tendency to move in response to light
Italian eliotropico, fototropico
  • eliotropicohaving a tendency to move in response to light
  • fototropicohaving a tendency to move in response to light
Romanian fototropic
  • fototropichaving a tendency to move in response to light
Cite this entry
APA

phototropic. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/phototropic

MLA

“phototropic.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/phototropic. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “phototropic,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/phototropic.

Source: phototropic on Wiktionary, CC BY-SA 4.0.