caustisch

Caustisch is an adjective used in Dutch (and in related Germanic contexts) to describe substances with strong corrosive properties as well as to characterize remarks that are biting or scathing. In everyday language, a caustic remark is harsh and satirical, aiming to wound or undermine the subject.

Etymology and usage: The term derives from Latin causticus, from Greek kaustikos meaning burning, from kaustos meaning burnt. The English word caustic shares this origin. In Dutch, caustisch is the standard spelling for both the chemical sense and the figurative sense; in German, the corresponding chemical term is typically kaustisch. The word is common in scientific, industrial, and literary contexts.

Chemistry: Caustic substances are highly alkaline and corrosive, capable of destroying or burning organic tissue. Common examples include sodium hydroxide (caustic soda) and potassium hydroxide (caustic potash). These materials react exothermically with acids and organic matter and are used in processes such as pulp and paper production, soap making, and various chemical manufacturing applications. Handling requires protective equipment and proper storage to prevent skin contact or inhalation.

Rhetorical and cultural usage: In rhetoric, caustic remarks describe a style that is dry, sardonic, and potentially insulting, emphasizing the destructive bite of critique rather than any literal burning.

Safety and regulation: Because caustic substances can cause severe burns and eye damage, safety guidelines include the use of protective gear, proper ventilation, emergency washing facilities, and strict labeling and containment in workplaces.