thermite: meaning, definition, pronunciation and examples
LowTechnical/Specialist
Quick answer
What does “thermite” mean?
A highly energetic incendiary mixture of a metal powder (commonly aluminium) and a metal oxide (commonly iron oxide), which when ignited produces an exothermic oxidation-reduction reaction, generating intense heat.
Audio
Pronunciation
Definition
Meaning and Definition
A highly energetic incendiary mixture of a metal powder (commonly aluminium) and a metal oxide (commonly iron oxide), which when ignited produces an exothermic oxidation-reduction reaction, generating intense heat.
The reaction, material, or process involving such a mixture, used in welding, incendiary weapons, and controlled demolition, sometimes referred to as the "Goldschmidt process".
Dialectal Variation
British vs American Usage
Differences
No significant spelling or usage differences. The term is identical and used with the same technical meaning in both varieties.
Connotations
Technically neutral but often associated with military, industrial, or destructive applications due to popular media portrayals.
Frequency
Equally low-frequency in both varieties; usage is confined to technical, military, historical, and educational contexts.
Grammar
How to Use “thermite” in a Sentence
VERB + thermite (e.g., ignite, use, mix, produce)thermite + NOUN (e.g., reaction, mixture, welding, grenade, process)Vocabulary
Collocations
Examples
Examples of “thermite” in a Sentence
verb
British English
- [No standard verb form. 'Thermite' is not used as a verb.]
American English
- [No standard verb form. 'Thermite' is not used as a verb.]
adverb
British English
- [No adverb form derived from 'thermite'.]
American English
- [No adverb form derived from 'thermite'.]
adjective
British English
- The thermite welding process is standard for joining railway tracks.
- They conducted a thermite reaction demonstration in the lab.
American English
- A thermite grenade can burn through engine blocks.
- The thermite mixture was prepared under a fume hood.
Usage
Meaning in Context
Business
Rare, unless in specific industries like railway maintenance (thermite welding of tracks) or specialised demolition.
Academic
Used in chemistry, materials science, engineering, and military history contexts.
Everyday
Virtually never used in casual conversation. May be encountered in documentaries, news about industrial accidents, or action films.
Technical
The primary domain. Precise description of compositions, reaction temperatures (~2500°C), and industrial/military applications.
Vocabulary
Synonyms of “thermite”
Strong
Neutral
Weak
Vocabulary
Antonyms of “thermite”
Watch out
Common Mistakes When Using “thermite”
- Misspelling as 'thermate' (a related but different incendiary).
- Pronouncing the '-mite' as /maɪt/ (like 'mite' insect) is correct, but some may incorrectly use /miːt/.
- Using as a countable noun (e.g., 'a thermite') – it's generally uncountable (e.g., 'some thermite').
FAQ
Frequently Asked Questions
Yes, because the thermite reaction supplies its own oxygen from the metal oxide; it does not require atmospheric oxygen and can proceed underwater or in other oxygen-poor environments.
No. Thermite is the classic aluminium-iron oxide mixture. Thermate is a variant, often used in incendiary grenades, which typically adds sulphur and barium nitrate to thermite to lower its ignition temperature and produce more flame.
Its main civilian use is in thermite welding (also called exothermic welding) for joining electrical conductors or railway tracks. Historically and militarily, it has been used in incendiary bombs and grenades.
It burns at an extremely high temperature and is a self-contained reaction. Pouring water on it can cause explosive steam generation, potentially spreading the burning material. It must burn out on its own or be smothered with massive amounts of specific dry chemicals or sand.
A highly energetic incendiary mixture of a metal powder (commonly aluminium) and a metal oxide (commonly iron oxide), which when ignited produces an exothermic oxidation-reduction reaction, generating intense heat.
Thermite is usually technical/specialist in register.
Thermite: in British English it is pronounced /ˈθɜːmaɪt/, and in American English it is pronounced /ˈθɜːrmaɪt/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “[No common idioms specific to the word. Technical term.]”
Learning
Memory Aids
Mnemonic
Think of 'THERM' (related to heat, like in 'thermal') and '-ITE' (a common suffix for minerals/compounds). A compound that creates intense HEAT.
Conceptual Metaphor
LIQUID SUN/UNSTOPPABLE FIRE: Often conceptualised as a substance that melts through anything, representing unstoppable, concentrated destructive or transformative energy.
Practice
Quiz
What is the primary reaction type in a thermite process?