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Synonyms

bicameral

American  
[bahy-kam-er-uhl] / baɪˈkæm ər əl /

adjective

Government.
  1. having two branches, chambers, or houses, as a legislative body.


bicameral British  
/ baɪˈkæmərəl /

adjective

  1. (of a legislature) consisting of two chambers

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Etymology

Origin of bicameral

First recorded in 1825–35; bi- 1 + Latin camer(a) “vault, arched roof” + -al 1. See chamber

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Explanation

If your committee has two distinct groups responsible for setting rules and developing policies, then you’re involved in a bicameral system, meaning that there are two separate branches making up the system. You’ve probably noticed the prefix bi- and know that it’s a tip-off that this word is likely going to describe something that has two parts. You’re right. The word bicameral originates from the Latin bi-, meaning "two," combined with camera, meaning "chamber." Chamber is just another way of referring to a legislative branch of a government or other official organization. You’re probably already familiar with one famous bicameral system: the U.S. Congress, which is made up of two chambers: the Senate and the House of Representatives.

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Vocabulary lists containing bicameral

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The bipartisan, bicameral Congressional-Executive Commission on China, where we serve as chair and ranking member, has worked to expose this threat.

From The Wall Street Journal • Mar. 2, 2026

These include expanding parliament into a bicameral system, with a new 100‑seat upper house allocated according to each party's share of the national vote.

From Barron's • Feb. 11, 2026

But Mexico has a government system much like ours, with a president who’s head of the executive branch, a bicameral legislature, and an independent judiciary.

From Slate • Aug. 2, 2024

“I urge my colleagues to support this bipartisan, bicameral and utterly fantastic bill,” said Representative Lloyd K. Smucker, Republican of Pennsylvania.

From New York Times • Dec. 13, 2023

Herein the legislative authority was vested in a General Assembly, which was organized on the bicameral plan.

From History of the Constitutions of Iowa by Shambaugh, Benjamin F.

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