molecules - Master This Word
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molecules Word Meanings
- The smallest unit of a substance that retains its properties.
- A group of atoms bonded together.
- A tiny, discrete particle.
molecules Example Sentences
Example sentences are the start of understanding. Don't rush to memorize. First feel how the word works in a sentence.
molecules Phonetic & Pronunciation
UK
/ˈmɒlɪkjuːl/
US
/ˈmɑːlɪkjuːl/
molecules Word Etymology
Root decomposition: molec- = mass, -ule = small. Historical origin: Latin 'molecula' → Old French → English. Memory image: Picture a tiny mass of building blocks, illustrating how small components come together to form something larger.
Note 1: These definitions and etymologies are not standard dictionary definitions, but extended explanations provided to help with memorization and understanding of the actual application of words. Through this background information, we strive to make words more vivid and easier to understand, and help you remember their meanings in real life.
Note 2: LexiTalk designs the learning flow around the linguistics principle of “Comprehensible Input.” When learners encounter material that is slightly above their level but still understandable from context, the brain naturally absorbs the language. That’s why we keep every word inside authentic contexts, using examples and associations to help you understand it and use it flexibly.
Read the FAQ explanation of Comprehensible InputReal Context
The molecule is the smallest unit of a substance that retains its chemical properties. It is a group of two or more atoms held together by chemical bonds, and it behaves as a single unit with distinct characteristics. Atoms link to form molecules in countless arrangements, from simple diatomic pairs like O2 to large, complex networks in proteins or polymers. Molecules can be neutral or charged, and their shape and bonds determine properties such as reactivity, phase, and how substances interact with one another. Understanding molecules helps explain everything from why water supports life to how medicines interact with cells.
Usage Reminders
- Use molecule for a discrete chemical unit formed by joined atoms.
- Differentiate from atom and from a general particle.
- Say “a molecule of water” or “molecules of sugar” when counting units.
- Molecule is countable: one molecule, many molecules.
- Discuss molecular structure, bonds, and properties.
Common Misconceptions
- A molecule is the same as an atom.
- All molecules are very large or complex.
- Molecules only exist in chemistry labs or science fiction.
- A molecule must always be neutral.
- Molecule equals 'tiny particle' in everyday language.
Thinking Differences
English speakers often frame molecules as concrete, countable units with clear operations (counting molecules, talking about bonds) and may overemphasize size or lab contexts. Learners can confuse molecule with atom or particle, and may rely too much on the generic word 'particle' in everyday talk.
Learning Tips
- Link molecule to real-world examples (water, sugar, DNA).
- Visualize with simple diagrams of bonds and atoms.
- Differentiate atom (single unit) vs molecule (joined units).
- Practice plural: one molecule, many molecules.
- Learn common collocations: molecular structure, molecular weight, molecular bond.
- Use 'molecule of' for counting specific substances.
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