Dictionary.com
Thesaurus.com

unicameral vs. bicameral

[yoo-ni-kam-er-uhl] / ˌyu nɪˈkæm ər əl /

adjective

  1. consisting of a single chamber, as a legislative assembly.

[bahy-kam-er-uhl] / baɪˈkæm ər əl /

adjective

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