/ Dictionary / Index B bottom heat: Meaning and Definition of Find definitions for: bot'tom heat" Pronunciation: [key] — Hort. Hort. heat artificially applied to a container in which plants are grown in order to induce their germination, rooting, or growth. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. bottom grass bottom ice Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language