nitroglycerine
C2Technical, historical, medical, figurative.
Definition
Meaning
A highly explosive liquid, C₃H₅N₃O₉, produced by reacting glycerol with nitric and sulfuric acids.
1. The foundational explosive component in dynamite and gelignite. 2. Figuratively, something extremely volatile, unstable, or capable of causing a dramatic reaction. 3. A medication for angina pectoris, which dilates blood vessels.
Linguistics
Semantic Notes
Primarily a technical term in chemistry, mining, and medicine. Its figurative use ('a political nitroglycerine situation') is well-established. Spelling variant 'nitroglycerin' is common, especially in American English and for the medicinal form.
Dialectal Variation
British vs American Usage
Differences
British English tends to use the '-ine' spelling slightly more formally. American English has a strong preference for 'nitroglycerin', especially in medical and general contexts.
Connotations
Identical. Connotes extreme danger, instability, and power.
Frequency
Moderately low in both, with higher occurrence in historical/technical texts. The medical use increases frequency in relevant contexts.
Vocabulary
Collocations
Grammar
Valency Patterns
N is made/composed of nitroglycerine.V (manufacture/transport/handle) nitroglycerine.The nitroglycerine V (exploded/detonated/leaked).Administer nitroglycerine for N (angina/chest pain).Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “like handling nitroglycerine”
- “a nitroglycerine issue”
Usage
Context Usage
Business
Rare. Possibly in risk management metaphors: 'The merger talks are pure nitroglycerine.'
Academic
Common in history (industrial revolution), chemistry, and pharmacology texts.
Everyday
Very rare. Used figuratively for unstable situations.
Technical
Primary context: chemistry, explosive engineering, pharmacology (as a vasodilator).
Examples
By Part of Speech
verb
British English
- The material was nitroglycerine-soaked and highly dangerous.
American English
- The process to nitroglycerinate the kieselguhr was carefully controlled.
adjective
British English
- The lorry had a nitroglycerine cargo warning placard.
American English
- He was in a nitroglycerin-like state of nervous tension.
Examples
By CEFR Level
- Nitroglycerine is very dangerous. (labelled picture)
- Alfred Nobel used nitroglycerine to invent dynamite.
- The transport of unstable nitroglycerine was a major hazard in the 19th century.
- Figuratively speaking, the ceasefire agreement was diplomatic nitroglycerine, liable to explode at the slightest provocation.
Learning
Memory Aids
Mnemonic
NITRO (like in 'nitro boost') + GLYCERINE (a thick liquid). Think: 'The explosive liquid in dynamite.'
Conceptual Metaphor
VOLATILE SITUATIONS ARE EXPLOSIVES / UNSTABLE ENTITIES ARE NITROGLYCERINE.
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Avoid confusing with 'nitroglycerol' (a less common synonym). The direct transliteration 'нитроглицерин' is correct but note the spelling difference in the second part of the word ('глицерин' vs 'глицерИн' in Russian). The medical term is identical.
Common Mistakes
- Misspelling: 'nitroglicerine', 'nitrogliserin'. Mispronouncing the 'glyc-' as /ɡlaɪk/. Using it as a verb ('to nitroglycerine something').
Practice
Quiz
In a medical context, 'nitroglycerin' is primarily used to treat:
FAQ
Frequently Asked Questions
Both are correct. 'Nitroglycerin' is preferred in American English and in pharmacology. 'Nitroglycerine' is common in British English and historical/technical contexts.
No. Dynamite is a much safer explosive made by absorbing nitroglycerine into an inert, porous material like diatomaceous earth.
As a potent vasodilator, it is administered under the tongue (sublingually), as a spray, or in patches to rapidly relieve chest pain (angina) by improving blood flow to the heart.
Its chemical structure contains both fuel (carbon and hydrogen) and a high concentration of oxygen (from nitrate groups) in close proximity, making it prone to a rapid, exothermic decomposition reaction upon shock or heat.