classical elementOur editors are putting together more complete content — check back in about 20 minutesclassical elementclassical element — noun名詞1. one of the four basic substances in ancient philosophy: earth, water, air, fire.1.名詞釋義one of the four basic substances in ancient philosophy: earth, water, air, fire.例句In alchemy, the four classical elements are earth, water, air, and fire.