/ Dictionary / Index P psychro-: Meaning and Definition of Find definitions for: psychro- Pronunciation: [key] a combining form meaning “cold,” used in the formation of compound words: psychrometer. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. psych-out psychrometer Related Content Daily Word Quiz: resilient Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language