• Webster's Revised Unabridged Dictionary
    • n Electro-negative (Chem. & Physics) A body which passes to the positive pole in electrolysis; an anion.
    • Electro-negative (Physics) carrying a negative electrical charge.
    • Electro-negative (Chem. and Physics) having a tendency to take up electrons and form negative ions; having a relatively positive electrode potential.
    • Electro-negative Having the property of being attracted by an electro-positive body, or a tendency to pass to the positive pole in electrolysis, by the law that opposite electricities attract each other. Contrasted with neutral and electropositive
    • Electro-negative Negative; nonmetallic; acidic; -- opposed to positive metallic, or basic.
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Century Dictionary and Cyclopedia
    • electro-negative Repelled by bodies negatively electrified, and attracted by those positively electrified; having a tendency to pass to the positive pole in electrolysis.
    • electro-negative Assuming negative potential when in contact with a dissimilar substance, as copper when joined to zinc in a voltaic cell. See electromotive series, under electromotive.
    • n electro-negative A body which, in the process of electrolysis, appears at the positive pole of the voltaic battery. Oxygen is the most electro negative of the elements. See electrolysis.
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Chambers's Twentieth Century Dictionary
    • adj Electro-negative appearing, as an element in electrolysis, at the positive electrode: having the property of becoming negatively electrified by contact with a dissimilar substance
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In literature:

The most electro-positive elements are at the top and the most electro-negative at the bottom.
"Cyclopedia of Telephony & Telegraphy Vol. 1" by Kempster Miller
In negative diseases, there is a low degree of electro-vitality.
"A Newly Discovered System of Electrical Medication" by Daniel Clark
A muscle is stimulated by electro-negatively charged particles, and prevented from contracting by electro-positively charged particles.
"The Universe a Vast Electric Organism" by George Woodward Warder
Berzelius said that a base is an electro-positive oxide, and an acid is an electro-negative oxide.
"Heroes of Science" by M. M. Pattison Muir

In news:

Fujiya and miyagi electro karaoke in the negative style white.

In science:

The electro-negative impurities are mainly represented by oxygen, water, carbon dioxide and, in minor concentrations, some chlorine and fluorine compounds.
Study of accelerator neutrino interactions in a liquid argon TPC
The gas composition was found to be modified in the avalanche plasma of a strongly irradiated straw, presumably due to the production of some long-lived and highly electro-negative species [153].
Summary and Outlook of the International Workshop on Aging Phenomena in Gaseous Detectors (DESY, Hamburg, October, 2001)