noun
a group of people who try actively to influence legislation
• Syn: ↑lobby, ↑pressure group
• Hypernyms: ↑political unit, ↑political entity
• Hyponyms: ↑National Rifle Association, ↑NRA
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nounEtymology: so called from its relation to the two houses of which many legislatures are composed
: a legislative lobby
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(sometimes caps.) Informal.
a legislative lobby.
[1850-55, Amer.]
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Third House,
U.S. a body of lobbyists; group that tries to influence legislators: »
And the power of the so-called “Third House”—the special interest lobbies that had long ruled Sacramento—was waning (Harper's).
Useful english dictionary. 2012.