What does desalinating mean?
Desalinating refers to the process of removing dissolved salt from water—most often seawater or brackish groundwater—to render it fresh and fit for human consumption, agriculture, or industrial use. It functions grammatically as the present participle of the verb 'desalinate,' so it typically appears in continuous constructions ('the plant has been desalinating seawater for years') or as a gerund naming the activity itself ('desalinating requires significant energy'). The word carries a technical, scientific register and appears frequently in discussions of water scarcity, climate adaptation, and coastal infrastructure. As global demand for freshwater intensifies, desalinating has moved from an exotic engineering feat to a mainstream strategy, with countries such as Israel, Saudi Arabia, and Australia relying heavily on it. Its cognate noun, desalination, names the broader process or industry.
verb (present participle of 'desalinate')The act of removing salt from something, especially seawater or brackish water, to make it fresh and usable.
- Removing dissolved salt from seawater or brackish water to produce fresh water suitable for drinking, irrigation, or industrial use.
"The coastal city invested billions in a plant dedicated to desalinating seawater for its growing population."
"The island nation has been desalinating ocean water since its aquifers ran dry decades ago."
"Modern reverse-osmosis membranes make desalinating far less energy-intensive than earlier thermal methods."
Over half of the world's freshwater scarcity hotspots now rely on plants that are literally turning the ocean into drinking water — one molecule at a time.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of desalinating
The verb 'desalinate' combines the Latin-derived prefix 'de-' ('to remove') with the root 'sal,' the Latin word for salt, which also gives us 'saline' and 'salinity.' The term emerged in the mid-twentieth century alongside the growth of industrial water-treatment technology, though the practice of distilling seawater dates back centuries. Related forms include 'desalinize' (an American variant) and 'desalination' (the corresponding noun).
Related word forms
How desalinating is actually used
Formal/technical register, most commonly encountered in environmental science, engineering, and policy contexts. The base form 'desalinate' is more frequent than the present participle; 'desalinise'/'desalinisation' appear in British English as variant spellings.
Easily confused with desalinating
'Desalting' is the more general term for removing salts from any substance (including food or crude oil), while 'desalinating' specifically applies to removing salt from water to make it potable.