[ih-lek-troh-mahy-uh-graf, -grahf] /ɪˌlɛk troʊˈmaɪ əˌgræf, -ˌgrɑf/
a device for recording electric currents from an active muscle to produce an electromyogram.
(med) a technique for recording the electrical activity of muscles: used in the diagnosis of nerve and muscle disorders
electromyograph e·lec·tro·my·o·graph (ĭ-lěk’trō-mī’ə-graf’)
An instrument used in diagnosing neuromuscular disorders that produces an audio or visual record of the electrical activity of a skeletal muscle by means of an electrode inserted into the muscle or placed on the skin.
e·lec’tro·my·og’ra·phy (-mī-ŏg’rə-fē) n.
[ih-lek-tron] /ɪˈlɛk trɒn/ noun 1. Also called negatron. Physics, Chemistry. an elementary particle that is a fundamental constituent of matter, having a negative charge of 1.602 × 10 −19 coulombs, a mass of 9.108 × 10 −31 kilograms, and spin of ½, and existing independently or as the component outside the nucleus of an atom. […]
noun, Physics, Chemistry. 1. the quantitative measure, usually given in electron-volts, of the tendency of an atom or molecule to capture an electron and to form a negative ion. noun 1. a measure of the ability of an atom or molecule to form a negative ion, expressed as the energy released when an electron is […]
noun, Electronics. 1. an apparatus that converts an optical image into a corresponding electric current by electronic means without the intervention of mechanical scanning.
- Electron capture
noun (physics) 1. the transformation of an atomic nucleus in which an electron from the atom is spontaneously absorbed into the nucleus. A proton is changed into a neutron, thereby reducing the atomic number by 1. A neutrino is emitted. The process may be detected by the consequent emission of the characteristic X-rays of the […]