Akademik

lower house
noun
: the popular and often the larger and more representative branch of a legislative body having two chambers

the lower house of the Dominion Parliament is known as the House of Commons — F.A.Magruder

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ˌlower ˈhouse [lower house] (also ˌlower ˈchamber) noun singular
the larger group of people who make laws in a country, usually consisting of elected representatives, such as the House of Commons in Britain or the House of Representatives in the US
compare upper house

Useful english dictionary. 2012.