/ Dictionary / Index B base load: Meaning and Definition of Find definitions for: base' load" Pronunciation: [key] — Chiefly Brit. Chiefly Brit. the constant or permanent load on a power supply. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Basel-Land Basel-Stadt Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language