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1. Composed of or based on two legislative chambers or branches: a bicameral legislature.
2. Medicine Composed of or having two chambers, as an abscess divided by a septum.

[bi- + Latin camera, chamber; see chamber + -al.]

bi·cam′er·al·ism n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


1. a legislative body having two branches, houses, or chambers.
2. advocacy of bicameral structure. Cf. unicameralism.bicameralist, n.bicameral, adj.
See also: Government
-Ologies & -Isms. Copyright 2008 The Gale Group, Inc. All rights reserved.
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In developed democracies, a bicameral legislature exists out of a need to have two Houses that could act as an internal check on each other.
In the opinion for the majority, Ginsburg wrote: "One House of its bicameral legislature cannot alone continue the litigation against the will of its partners in the legislative process."
Maharashtra Legislature is a bicameral legislature, with Legislative Assembly and Legislative Council as two Houses.
In 1997, the military designed a new constitution that would ensure transparency and accountability by providing for a fully elected bicameral legislature, empowered to impeach unscrupulous cabinet ministers, and by installing agencies to check graft and the assets of politicians.
RBH 15, principally authored by Speaker Gloria Macapagal Arroyo, proposes the adoption of a bicameral Legislature wherein the House shall be composed of no more than 300 Members and the Senate shall be composed of 24 Senators.
If we'd had to modernize a country then it would have meant constitutional monarchy, bicameral legislature, proportional representation, women's suffrage, independent judicature, freedom of the press, referendums..."
A major feature of the present federal structure which is difficult to justify, especially in view of the parlous state of Nigeria's economy, is the bicameral legislature. Every bill that is passed in the House of Representatives must again be presented to the Senate for the same purpose.
The elections took place more than a decade after the abolition of the bicameral legislature and the establishment of a unicameral body under a parliamentary government as provided for under the 1973 Constitution.
The bill included amendments such as reestablishing a bicameral legislature by introducing the Senate as a second legislative chamber, Women would comprise 25 percent of the parliament and appointment of more than a vice for the president.
But those in favor of a bicameral legislature remained split on the question of senatorial districts or election-at-large, so the unicameralists won.
The 1973 Constitution set up a bicameral legislature at the Center consisting of two Houses, the National Assembly and the Senate.