photomyoclonus pho·to·my·oc·lo·nus (fō’tō-mī-ŏk’lə-nəs)
Clonic muscular spasms in response to visual stimuli.
[foh-ton] /ˈfoʊ tɒn/ noun 1. a quantum of electromagnetic radiation, usually considered as an elementary particle that is its own antiparticle and that has zero rest mass and charge and a spin of one. Symbol: γ. /ˈfəʊtɒn/ noun 1. a quantum of electromagnetic radiation, regarded as a particle with zero rest mass and charge, unit […]
/ˈfəʊtəʊˌnæstɪ/ noun (pl) -ties 1. a nastic movement in response to a change in light intensity
[foh-tuh-neg-uh-tiv] /ˌfoʊ təˈnɛg ə tɪv/ adjective, Physics. 1. pertaining to a substance, as selenium, having a conductivity that decreases upon absorption of electromagnetic radiation. /ˌfəʊtəʊˈnɛɡətɪv/ adjective 1. (physics) (of a material) having an electrical conductivity that decreases with increasing illumination
[foh-tuh-noo-tron, -nyoo-] /ˌfoʊ təˈnu trɒn, -ˈnyu-/ noun, Physics. 1. a emitted from a nucleus during photodisintegration. /ˌfəʊtəʊˈnjuːtrɒn/ noun 1. a neutron emitted from a nucleus as a result of photodisintegration