Phrase guide

conservation of mass

noun · 2 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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No pronunciation record was provided for this word.

1

noun

Meaning 1

A conservation law of classical physics that states that the total mass of a closed system remains constant regardless of the chemical or physical changes that take place within it.

Definition source: English Wiktionary via Wiktextract

Usage: physical, uncountable

Topics: chemistry, natural-sciences, physical-sciences, physics

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

a fundamental principle of classical physics that matter cannot be created or destroyed in an isolated system

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: conservation of matter, law of conservation of mass, law of conservation of matter

Antonyms: none provided

Broader terms: conservation

History

Etymology

No etymology was provided for this word.

Across languages

Translations

8 source translations are retained for this English entry.

  • Catalan: conservació de la massa — conservation law
  • Chinese Mandarin: 質量守恆 /质量守恒 (zhìliàng shǒuhéng) — conservation law
  • Danish: massebevarelse — conservation law
  • Finnish: aineen häviämättömyys — conservation law
  • German: Massenerhaltung — conservation law
  • Greek: διατήρηση της μάζας (diatírisi tis mázas) — conservation law
  • Romanian: conservarea masei — conservation law
  • Romanian: conservare a masei — conservation law