conservation of momentum is a noun meaning "the principle that the total linear momentum in a closed system is constant and is not affected by processes occurring inside the system". It carries one recorded sense.
the principle that the total linear momentum in a closed system is constant and is not affected by processes occurring inside the system
Definitions, synonyms and semantic relations for conservation of momentum come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.