ポゾランMeanings1nounpozzolanarchitecture›civil engineering›Technical term in architecture and civil engineering for a siliceous material that reacts with lime in water to form a cement-like compound.古こ代だいローマの建けん築ちくでは、ポゾランがコンクリートの材ざい料りょうとして使つかわれた。In ancient Roman architecture, pozzolan was used as a material for concrete.