Osmoregulation

Part of speech: noun

Definitions

1. The process by which an organism regulates the balance of fluids and solutes in its body to maintain homeostasis is essential for survival
2. It involves the mechanisms employed to control the levels of water and ions within biological systems, ensuring optimal functioning
3. The biological function that maintains fluid and solute balance within an organism for survival involves various physiological mechanisms

Etymology: Osmoregulation is a plain technical compound: "osmo-" joined to "regulation." The first part comes from Greek "ōsmos," meaning a push or thrust, which is itself built on the verb "ōtheō," to push. The Greek root gave rise to "osmosis," the movement of water across a membrane toward a region of higher solute concentration, and the prefix "osmo-" carries that sense into compounds. The second part, "regulation," comes from Latin "regulare," to control by rule, and was adopted into English from the Latin "regulatio" in the sense of ordering or governing. Put together, the word names the control of water and dissolved salts within living cells and organisms, a meaning that ties the Greek idea of pushing to the Latin idea of keeping things in order.