Avogadro's law

noun
Avo·​ga·​dro's law | \ˌav-ə-ˌgäd-(ˌ)rōz-, ˌäv-, -ˌgad-\

Medical Definition of Avogadro's law 

: a law in chemistry: equal volumes of all gases at the same temperature and pressure contain equal numbers of molecules

called also Avogadro's hypothesis

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