helium: meaning, definition, pronunciation and examples
C2Technical/Scientific, but common in general contexts.
Quick answer
What does “helium” mean?
A chemical element (symbol He, atomic number 2), a very light, colourless, odourless, non-toxic, inert gas that is the second most abundant element in the universe.
Audio
Pronunciation
Definition
Meaning and Definition
A chemical element (symbol He, atomic number 2), a very light, colourless, odourless, non-toxic, inert gas that is the second most abundant element in the universe.
The substance used for filling balloons and airships to make them float, in cryogenics, and as a breathing mixture for deep-sea divers.
Dialectal Variation
British vs American Usage
Differences
No significant differences in meaning or usage. Pronunciation differs slightly.
Connotations
Identical.
Frequency
Equal frequency in scientific contexts. Slightly more common in everyday US English due to advertising for 'helium balloons' at parties and stores.
Grammar
How to Use “helium” in a Sentence
[N] + [of] + helium (a balloon of helium)helium + [N] (helium balloon)[V] + helium (to inhale helium)Vocabulary
Collocations
Examples
Examples of “helium” in a Sentence
adjective
British English
- The helium canister was securely fastened.
- They performed a helium audit on all the tanks.
American English
- The helium shortage is affecting balloon prices.
- We need a helium-grade valve for this system.
Usage
Meaning in Context
Business
Discussed in industries related to party supplies, welding, medical MRI technology, and aerospace.
Academic
Core term in physics, chemistry, astronomy, and engineering papers.
Everyday
Primarily associated with party balloons and funny voices.
Technical
Essential in cryogenics, leak detection, arc welding, and as a pressurizing agent.
Watch out
Common Mistakes When Using “helium”
- Pronouncing it as 'hel-ee-um' (with a short e).
- Using it as a countable noun ('a helium').
- Confusing it with 'hydrogen' as a lifting gas.
FAQ
Frequently Asked Questions
No, helium is an inert noble gas and is completely non-flammable, which is why it replaced hydrogen in airships.
Sound travels faster through helium than through air, which changes the resonance of your vocal tract, amplifying the higher frequencies.
Yes, helium is a finite, non-renewable resource on Earth, and its extraction and conservation are significant concerns in science and industry.
Breathing pure helium is dangerous because it displaces the oxygen your body needs, leading to hypoxia (oxygen deprivation) and potential loss of consciousness in seconds.
A chemical element (symbol He, atomic number 2), a very light, colourless, odourless, non-toxic, inert gas that is the second most abundant element in the universe.
Helium is usually technical/scientific, but common in general contexts. in register.
Helium: in British English it is pronounced /ˈhiːliəm/, and in American English it is pronounced /ˈhiːliəm/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “On helium (informal: referring to a high-pitched voice after inhalation)”
Learning
Memory Aids
Mnemonic
Think 'HE Lifts It Up, Mate' – the HE in Helium reminds you it's the gas that makes things rise.
Conceptual Metaphor
LIGHTNESS IS UP (helium makes things rise); INSIGNIFICANCE/FRIVOLITY IS HELIUM (e.g., 'a helium argument' lacks substance).
Practice
Quiz
What is a primary scientific use of liquid helium?