This meaning refers to the ability of something to produce a desired result or impact. It is often used in contexts related to medicine, research, or any scenario where the effectiveness of an action or substance is being evaluated.

This relates to the capacity of a product or method to produce a beneficial result under ideal conditions. It's commonly used in studies and discussions about treatments or interventions.

This usage encompasses the quality of being logically or factually sound, particularly important in research and assessments where the accuracy and legitimacy of findings must be guaranteed.

This meaning refers to the strength or effectiveness of a substance, particularly in contexts involving pharmacology or chemical interactions where the concentration or strength of an element is significant.