what does base mean in science terms
Base Definition: A base is a chemical species that donates electrons or hydroxide ions or that accepts protons.Types of Bases: Arrhenius base, Bronsted-Lowry base, Lewis base. By Anne Marie Helmenstine, Ph.D. Return to the Chemistry Glossary Index.ase Definition: A base is a chemical species that donates electrons or hydroxide ions or that accepts protons.