nitro
UK[ˈnaɪtrəʊ]US[ˈnaɪtroʊ]
n
A combining form or informal term relating to nitrogen or nitrogen compounds, especially those containing the nitro group (-NO₂).
n
(Informal) Nitroglycerin or another high explosive.
n
(Informal) Nitromethane, especially as a fuel additive for high-performance engines.
Morpheme Breakdown
nitr
o
nitr
nitre
o
connecting vowel
Etymology
The term "nitro" is a modern scientific shorthand derived from the longer word "nitrogen." Its ultimate origin lies in the Greek word 'nitron,' which referred to native soda, a natural sodium carbonate deposit. This term was later adopted into Latin as 'nitrum,' where its association shifted towards saltpeter (potassium nitrate), a key ingredient in gunpowder. When the element nitrogen was isolated in the 18th century, it was named for its presence in nitre (saltpeter) and nitric acid. The clipped form "nitro" emerged as a convenient combining form in chemistry (e.g., nitrocellulose) and entered informal usage to denote powerful nitrogen-based compounds like nitroglycerin and nitromethane, carrying connotations of high energy and explosive force.
Analysis
Structure: nitr (nitre) + o (connecting vowel)
- nitr: From Greek 'nitron' (native soda, saltpeter). In this word, it functions as the root meaning "nitrogen" or "nitre".
- o: A connecting vowel, often of Greek origin, used to join combining forms in scientific terminology.
Examples
The mechanic filled the dragster's tank with high-performance nitro.
Nitro compounds are important in both organic chemistry and the manufacture of explosives.
In the old western, the outlaws planned to blow the safe using nitro.