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Word of the Day Wednesday, June 10, 2026

phototactic

/fɒtəˈtætɪk/ adjective · British & US
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What does phototactic mean?

adjective

Relating to the movement of organisms towards or away from light. In some organisms, the movement towards light is a positive response, while in others it is a negative response.

Example

"The phototactic behavior of the plant was studied in a controlled laboratory setting."

Definition generated by AI and curated by RJS Tech Solutions LLP.

Synonyms for phototactic

Antonyms of phototactic

Rhymes with phototactic

Etymologically related