Definition of Photonegative

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

¹ Source: wiktionary.com

Definition of Photonegative

1. [adj]

Lexicographical Neighbors of Photonegative

photomultiplier tube
photomultipliers
photomural
photomurals
photomutagenicity
photomyoclonus
photon
photon belt
photon belts
photon density
photon sail
photon sails
photon tunnelling
photonastic
photoncia
photonegative
photonephelometer
photonephelometers
photoneutrino
photoneutrinos
photoneutron
photoneutrons
photonic
photonics
photonosus
photons
photonuclear
photonuclear reaction
photonuclear reactions
photooxidase

Literary usage of Photonegative

Below you will find example usage of this term as found in modern and/or classical literature:

1. Scientific papers of the Bureau of Standards by United States National Bureau of Standards (1922)
"This phenomenon appears to be rather rare, hence it seemed desirable to search for additional samples exhibiting the photonegative reaction. ..."

2. A New Cadmium-vapor Arc Lamp by Frederick John Bates (1921)
"This type of response is said to be "photonegative. ... HISTORICAL DATA OH Photonegative SENSITIVITY A photonegative action in certain samples of selenium ..."

3. Proceedings of the American Philosophical Society Held at Philadelphia for by American Philosophical Society (1922)
"The amoeba creeps away from a source of illumination, hydra creeps toward it, sea-anemones are for the most part photonegative, earthworms are positive to ..."

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