DICT.TW Dictionary Taiwan
Dy·nam·ic Dy·nam·ic·al a.
1. Of or pertaining to dynamics; belonging to energy or power; characterized by energy or production of force.
Science, as well as history, has its past to show, -- a past indeed, much larger; but its immensity is dynamic, not divine. --J. Martineau.
The vowel is produced by phonetic, not by dynamic, causes. --J. Peile.
2. Relating to physical forces, effects, or laws; as, dynamical geology.
As natural science has become more dynamic, so has history. --Prof. Shedd.
Dynamical electricity. See under Electricity.
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e·lec·tri·cian n.
1. An investigator of electricity; one versed in the science of electricity. [archaic]
Note: ☞ Electricity is manifested under following different forms: (a) Statical electricity, called also Frictional electricity or Common electricity, electricity in the condition of a stationary charge, in which the disturbance is produced by friction, as of glass, amber, etc., or by induction. (b) Dynamical electricity, called also Voltaic electricity, electricity in motion, or as a current produced by chemical decomposition, as by means of a voltaic battery, or by mechanical action, as by dynamo-electric machines. (c) Thermoelectricity, in which the disturbing cause is heat (attended possibly with some chemical action). It is developed by uniting two pieces of unlike metals in a bar, and then heating the bar unequally. (d) Atmospheric electricity, any condition of electrical disturbance in the atmosphere or clouds, due to some or all of the above mentioned causes. (e) Magnetic electricity, electricity developed by the action of magnets. (f) Positive electricity, the electricity that appears at the positive pole or anode of a battery, or that is produced by friction of glass; -- called also vitreous electricity. (g) Negative electricity, the electricity that appears at the negative pole or cathode, or is produced by the friction of resinous substance; -- called also resinous electricity. (h) Organic electricity, that which is developed in organic structures, either animal or vegetable, the phrase animal electricity being much more common.
3. The science which studies the phenomena and laws of electricity; electrical science.
4. Fig.: excitement, anticipation, or emotional tension, usually caused by the occurrence or expectation of something unusual or important.
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