2K

Molecules

UK //ˈmɒlɪkjuːlz//US //ˈmɒlɪkjulz//

Definition

Groups of atoms bonded together, forming the basic units of chemical substances.

In simple words: Tiny particles that make up everything around us.

Examples

  • Water molecules are essential for life.
  • The structure of DNA consists of complex molecules.
  • Researchers study how molecules interact in different environments.

Usage notes

Used in scientific contexts. Avoid in casual conversations unless discussing science.

Grammar pattern

standalone noun

Memory hint

Think of 'mole' + 'cues'; molecules cue the reactions in chemistry.

Collocations

  • complex molecules
  • water molecules
  • organic molecules

Synonyms

  • compounds
  • particles
  • substances

Antonyms

  • atoms
  • elements

Common mistakes

  • Confused with 'atoms' — molecules are made of atoms.
  • Mistakenly used as singular ('molecule') in plural context.
  • Used in non-scientific contexts where simpler language would suffice.