As nouns,
conservation of matter is a hyponym of
conservation; that is,
conservation of matter is a
word with a more specific, narrower meaning than
conservation:
- conservation: (physics) the maintenance of a certain quantities unchanged during chemical reactions or physical transformations
- conservation of matter: a fundamental principle of classical physics that matter cannot be created or destroyed in an isolated system
Other hyponyms of conservation include
conservation of charge,
conservation of electricity,
conservation of energy,
first law of thermodynamics,
law of conservation of energy,
conservation of mass,
law of conservation of mass,
law of conservation of matter,
conservation of momentum,
conservation of parity,
mirror symmetry,
parity,
space-reflection symmetry.