American Heritage® Dictionary of the English Language, Fourth Edition
- n. A solid electric conductor through which an electric current enters or leaves an electrolytic cell or other medium.
- n. A collector or emitter of electric charge or of electric-charge carriers, as in a semiconducting device.
Century Dictionary and Cyclopedia
- n. A pole of the current from an electric battery or machine which is in use in effecting electrolysis: applied generally to the two ends of an open electric circuit. The positive pole is termed the anode, and the negative pole the cathode.
- n. the terminal through which electric current passes between metallic and nonmetallic parts of an electric circuit
- n. a collector or emitter of electric charge in a semiconducting device
GNU Webster's 1913
- n. (Elec.) a conducting object by which electricity is conveyed into or from a solution or other non-metallic conducting medium; esp., the ends of the wires or conductors, leading from source of electricity, and terminating in the medium traversed by the current.
- n. a conductor used to make electrical contact with some part of a circuit
- The word was coined by the scientist Michael Faraday from the Ancient Greek words ἤλεκτρον (ēlektron, "amber") (from which the word electricity is derived) and ὁδός (hodos, "way"). (Wiktionary)
“In these a dropping mercury electrode is employed to determine current-voltage curves for electrolytes.”
“A study last year from the Massachusetts Institute of Technology found that plants generate a voltage of up to 200 millivolts when one electrode is placed in a plant and the other in the surrounding soil.”
“The electrode is then lowered on top of the nanowire array, leaving just enough space so that a significant number of the nanowires are free to flex within the gaps created by the tips.”
“It will be found that the sealing-in process is much easier when the stem of the electrode is short and when the glass coating is not too heavy.”
“Many think the key lies in the quality of the electrode, which is typically made of an expensive metal called palladium.”
“The outer edge of this washer is, therefore, rigid with respect to the rear electrode, which is fixed.”
“Thus the copper is deposited on one electrode, namely, the cathode, by which the current leaves the bath, and at the expense of the other electrode, that is to say, the anode, by which the current enters the bath.”
“When the power of the battery is sufficient the water in the vessel is decomposed, and oxygen being the negative element, collects at the positive foil or electrode, which is covered by the tube O.”
“(Fe3+) is used as a redox probe to measure the resistance to charge transfer from the solution to the electrode, which is proportional to the amount of cortisol in the solution.”
“But Steve Potter, a neuroengineer at Georgia Tech, told me that the fraction of energy absorbed by the electrode is a very small percentage of the neuron’s electrical potential.”
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