lethality

Lethality is not just about something being dangerous; it is about its power to cause death. Think of a venomous snake: its fangs have high lethality because they can deliver a fatal bite. The term is often used in places where danger must be measured clearly, such as military planning, medicine, or toxicology. A weapon with high lethality does not kill everyone it hits, but it has a strong chance of doing so. You might also hear that a disease has greater lethality, meaning the risk of dying from it is higher.

Lethality refers to the ability or power to cause death. It is more specific than general "danger" because it focuses on the chance that something will lead to loss of life. The word is often used for things like weapons, poisons, diseases, and other serious threats where people want to measure how deadly something really is.

In a military context, people talk about the lethality of weapons or attack methods to compare how likely they are to kill. In biology, medicine, and toxicology, lethality describes the deadliness of a toxin, a drug overdose, or an illness. Scientists sometimes measure this with terms like "LD50" (Lethal Dose, 50%), which means the amount of a substance that kills half of a test group.

The word can sometimes be used in a loose or figurative way, but its main meaning stays close to actual death risk. In every use, it points to more than a general threat. It highlights the real possibility that something can kill, which is why the word often appears in discussions of safety, war, health, and risk.