modulate
Meaning of modulate: Modulate means to adjust the strength or activity of a biological process or treatment up or down, rather than switching it fully on or off.
Definition of modulate
Modulate means to adjust or regulate the level, intensity, or activity of something rather than switching it fully on or off. In medicine and biology, the word describes processes or agents that fine-tune a system's activity, such as a medication that modulates immune activity or a nerve signal that modulates pain perception.
The term is commonly used for treatments and biological pathways whose effect is to shift a system's activity within a range, rather than to block or replace it entirely. Immune modulation, for example, can involve either increasing or decreasing components of the immune response depending on the clinical goal.
Because modulate describes a general kind of action rather than a specific mechanism, the direction and degree of the effect depend entirely on the particular agent, pathway, or context being described.
Used in a sentence
The medication was designed to modulate immune system activity in patients with the autoimmune condition.
Good to know
Modulate does not specify whether an effect increases or decreases activity; that direction must be stated separately or understood from context.