photonegative

From Wiktionary, the free dictionary
Jump to navigation Jump to search

English[edit]

Etymology[edit]

photo- +‎ negative

Adjective[edit]

photonegative (comparative more photonegative, superlative most photonegative)

  1. (biology) having a negative phototropic or phototactic response; repelled by light

Antonyms[edit]