/ Dictionary / Index H Hamiltonian: Meaning and Definition of Find definitions for: Ham•il•to•ni•an Pronunciation: (ham"ul-tō'nē-un), [key] — adj. pertaining to or advocating Hamiltonianism. —n. a supporter of Alexander Hamilton or Hamiltonianism. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Hamilton Hamiltonianism Related Content Daily Word Quiz: longevity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language