/ Dictionary / Index N natural history: Meaning and Definition of Find definitions for: nat'ural his'tory Pronunciation: [key] the sciences, as botany, mineralogy, or zoology, dealing with the study of all objects in nature: used esp. in reference to the beginnings of these sciences in former times. the study of these sciences. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. natural harmonics natural immunity Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language