/ Dictionary / Index L latency period: Meaning and Definition of Find definitions for: la'tency pe"riod Pronunciation: [key] the stage of personality development, extending from about four or five years of age to the beginning of puberty, during which sexual urges appear to lie dormant. See(def. 1). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. latency La Tène Related Content Daily Word Quiz: supine Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language