Breadcrumb Home > Dictionary > Index S subthreshold: Meaning and Definition of Find definitions for: sub•thresh•old Pronunciation: (sub-thresh'ōld, -thresh'hōld), [key] — adj. Psychol., Physiol. (of a stimulus) too weak to produce a response. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. subtherapeutic subtile TrendingHere are the facts and trivia that people are buzzing about. Chinese New Year History, Meaning, and Celebrations Current Events This Week: February 2024 Valentine's Day Valentine's Day History Mardi Gras 30 "Charlie and the Chocolate Factory" Quotes ✖ Related Content Daily Word Quiz: irascible Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language