- photonegative
- adjective Date: 1914 exhibiting negative phototropism or phototaxis
New Collegiate Dictionary. 2001.
photonegative
Look at other dictionaries:
photonegative — [fōt΄ō neg′ə tiv] adj. Biol. responding negatively to light, as an earthworm does … English World dictionary
photonegative — /foh teuh neg euh tiv/, adj. Physics. pertaining to a substance, as selenium, having a conductivity that decreases upon absorption of electromagnetic radiation. [1910 15; PHOTO + NEGATIVE] * * * … Universalium
photonegative — adjective having a negative phototropic or phototactic response; repelled by light Ant: photopositive … Wiktionary
photonegative — adj. having decreased conductivity upon absorption of electromagnetic radiation (Physics) … English contemporary dictionary
photonegative — adjective 1》 Biology (of an organism) tending to move away from light. 2》 Physics (of a substance) exhibiting a decrease in electrical conductivity under illumination … English new terms dictionary
photonegative — pho·to·negative … English syllables
photonegative — |fōd.(ˌ)ō+ adjective Etymology: phot + negative : exhibiting negative phototropism or phototaxis … Useful english dictionary
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