Breadcrumb Home > Dictionary > Index H hygroscope: Meaning and Definition of Find definitions for: hy•gro•scope Pronunciation: (hī'gru-skōp"), [key] — n. an instrument that indicates the approximate humidity of the air. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: hygroscope (Thesaurus) hygrophyte hygroscopic TrendingHere are the facts and trivia that people are buzzing about. Ramadan and Eid al-Fitr 42 Best War Movie Quotes Current Events This Week: March 2023 Recycling Facts William Shakespeare Worst U.S. Forest Fires ✖ Related Content Daily Word Quiz: manoamano Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language