caustic

a. 腐蚀性的,刻薄的

A caustic verbal attack.

讽刺刻薄的口头上的攻击

An agent or instrument used to destroy abnormal tissue by burning, searing, or scarring, including caustic substances, electric currents, lasers, and very hot or very cold instruments.

烧灼剂通过烧、灼或结疤手段用于破坏不正常人体组织的药剂或仪器，包括腐蚀物质、电流、激光以及极热或极冷的仪器