/ Dictionary / Index B basicity: Meaning and Definition of Find definitions for: ba•sic•i•ty Pronunciation: (bā-sis'i-tē), [key] — n. Chem. the state of being a base. the power of an acid to react with bases, dependent on the number of replaceable hydrogen atoms of the acid. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. basic fuchsin basic lead carbonate Related Content Daily Word Quiz: blanch Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language