유해하다

Electromagnetic radiation with a wavelength shorter than that of visible light, but longer than X-rays. It is present in sunlight.

To recognize or become aware of something through the senses or the mind. In academic contexts, it often refers to cognitive processes.

To suppress, restrain, or hold back something, such as emotions, physical growth, inflation, or chemical reactions. It implies active control to prevent something from increasing.

To be weak or easily affected/damaged by something. Often used regarding security, health, or social standing.

To spread or distribute something (like a disease, rumor, or culture) over a wide area or among many people.

The state of lacking something essential, such as nutrients, affection, or resources.

To increase or improve something like health, efficiency, or welfare.

To exhaust or completely use up resources, strength, or energy.

The identification of the nature of an illness or other problem by examination of the symptoms; an assessment or analysis of a situation.

A change which is a result or consequence of an action or other cause; the power to produce a desired result.