Definition and meaning of English word "molecule"
molecule
/ˈmɒlɪkjuːl/
Meaning
NounThe smallest particle of a specific element or compound that retains the chemical properties of that element or compound; two or more atoms held together by chemical bonds.
How to use
The term 'molecule' is commonly used in chemistry and physics to describe the building blocks of matter. It is typically used in formal and technical contexts, such as in academic papers or educational materials. A common learner mistake is to confuse 'molecule' with 'compound', forgetting that a molecule can be a single atom, like helium, or a group of atoms.
🇬🇧 English
molecule
Example
Hydrogen chloride is a diatomic molecule, consisting of a hydrogen atom and a chlorine atom.
Your personal vocabulary
🦊 Use this word in a live AI conversationSynonyms
Common phrases
- molecular structure— molecular structure
- molecular biology— molecular biology
- molecular weight— molecular weight
This concept in other languages
Frequency rank: #1302 in English
Learn them all! 🚀
Master the 1000 most common English words with smart explanations, audio pronunciation, and spaced repetition.
Start Learning For Free →No sign-up required
Frequently Asked Questions
What does the English word "molecule" mean?▼
The English word "molecule" means "molecule" in English.
How do you pronounce the English word "molecule"?▼
You can hear the correct audio pronunciation of the word "molecule" by clicking the play button next to the word at the top of this page.
Can I see an example sentence with "molecule"?▼
Yes, here is a practical example: "Let's discuss the word molecule." (which translates as "molecule").
More Science & Research words
Related reading
Duolingo vs Anki vs Apps: Comparing Language Learning Methods in 2026
An honest comparison of popular language learning approaches: gamified apps, SRS flashcards, textbooks, tutors, and immersion. Pros, cons, and who each is best for.
Read →MethodWhat Is Spaced Repetition? The SM-2 Algorithm Explained Simply
Spaced repetition is the single most effective method for memorizing vocabulary. Learn how the forgetting curve works, how the SM-2 algorithm calculates review intervals, and why 20 minutes a day beats 2 hours of cramming.
Read →