/ Dictionary / Index T Type II error: Meaning and Definition of Find definitions for: Type II error Pronunciation: [key] the error made in the statistical testing of a hypothesis by accepting the null hypothesis when it is actually false. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Type II diabetes Type A Related Content Daily Word Quiz: wizened Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language