osmoregulation

This term describes the active biological mechanism used to prevent cells from shrinking or bursting due to osmotic pressure. It is a technical term primarily used in physiology, marine biology, and medicine to describe the precise control of solute concentrations.

Because it refers to a continuous biological process rather than a discrete object, the word is treated as an uncountable mass noun. It does not take a plural form in standard scientific discourse, as the process itself is a singular systemic function.