What does denitrate mean?
Denitrate is a technical verb meaning to remove nitrates or nitric acid from something. It belongs chiefly to the vocabulary of chemistry, environmental engineering, and industry, appearing in descriptions of water-treatment plants, nuclear fuel processing, and laboratory procedures. Where a liquid, soil sample, or other material carries an unwanted load of nitrates, engineers may denitrate it — that is, strip out those nitrogen-bearing compounds — before discharge, reuse, or disposal. The word is formed straightforwardly from the privative prefix 'de-' plus 'nitrate', making its meaning transparent even on first encounter. Although closely related in sound to 'denitrify', which describes the biological process by which microbes convert nitrates into nitrogen gas, 'denitrate' denotes the broader physical or chemical removal of nitrates. Because excess nitrates pose well-documented risks to drinking water and aquatic ecosystems, the ability to denitrate effluent has become an important concern in modern pollution control.
verbTo remove nitrates or nitric acid from a substance; in chemistry and industry, to treat a material so as to eliminate its nitrate content.
- To remove nitrates or nitric acid from a substance, especially by chemical treatment.
- To reduce the nitrate concentration in water, soil, or industrial waste.
"The wastewater plant installed a new system to denitrate the effluent before it entered the river."
"Engineers devised a process to denitrate the spent fuel solution safely."
"Farmers were urged to denitrate runoff water before releasing it into local streams."
Swap one prefix and the meaning flips completely: where 'nitrating' adds reactive nitrogen compounds, denitrating strips them away — a difference that matters greatly for clean drinking water.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of denitrate
Denitrate combines the Latin-derived prefix 'de-', indicating removal, with 'nitrate', itself rooted in Latin 'nitrum' (niter), a naturally occurring salt known since antiquity and borrowed into English via French. The compound verb arose within scientific English as chemistry developed precise terminology for treating substances, alongside related formations such as 'nitrify' and 'denitrification'. Its cognates all trace back to that shared root in 'nitrum', which ultimately derives from Greek sources describing the mineral salts early chemists studied.
Related word forms
How denitrate is actually used
A technical term used mainly in chemistry, engineering, and environmental science; rare in everyday speech. In microbiology contexts, 'denitrify' is strongly preferred over 'denitrate'.
Easily confused with denitrate
'Denitrate' means removing nitrates chemically from a substance, while 'denitrify' refers specifically to the microbial conversion of nitrates into gaseous nitrogen.
'Nitrate' means to add or combine with nitrates, whereas 'denitrate' removes them.