Coordinate terms:(when the comparison is implicit)metaphor,analogy
1826, Thomas Bayly Howell,A Complete Collection of State Trials and Proceedings for High Treason and Other Crimes and Misdemeanours, volume33:
He made asimile of George the third to Nebuchadnezzar, and of the prince regent to Belshazzar, and insisted that the prince represented the latter in not paying much attention to what had happened to kings[…]
1887,George Saintsbury, “Early Elizabethan prose”, inA History of Elizabethan Literature[1]:
The second was a fancy, which amounts to a mania, forsimiles, strung together in endless lists, and derived as a rule from animals, vegetables, or minerals, especially from the Fauna and Flora of fancy.
What follows should be prefaced with somesimile—thesimile of a powder-mine, a thunderbolt, an earthquake—for it blew Philip up in the air and flattened him on the ground and swallowed him up in the depths.