سم

A poison is a substance that causes harm or death when it enters the body in sufficient quantities, and it matters because properly identifying and labeling poisonous substances helps protect people from accidental or intentional exposure. The skull and crossbones symbol has historically served as a warning sign for poisons, and today international standards use specific pictograms to clearly mark poisonous chemicals so people can handle them safely.

AI-generated from the Wikipedia summary — may contain errors.