dynamo : Idioms & Phrases
dynamo-electric
Dy`na*mo-e*lec"tric adjective
Etymology
Gr. power + E.Definitions
Pertaining to the development of electricity, especially electrical currents, by power; producing electricity or electrical currents by mechanical power.
Webster 1913
human dynamo
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noun a highly energetic and indefatigable person
ball of fire; fireball; powerhouse.
WordNet
Shunt dynamo
(Elec.) , a dynamo in which the field circuit is connected with the main circuit so as to form a shunt to the letter, thus employing a portion of the current from the armature to maintain the field.