Unicameral :  adj : composed of one legislative body [ant: bicameral]

bicameral, congressional, deliberative, lawmaking, legislative, legislatorial, monadal, monadic, one-piece, one-sided, parliamentary, senatorial, uniangulate, unibivalent, unibranchiate, unicellular, unicuspid, unidentate, unidigitate, unidimensional, unidirectional, uniflorous, unifoliate, unifoliolate, unigenital, uniglobular, unilateral, unilinear, uniliteral, unilobed, unilobular, unimodular, unimolecular, uniocular, unipart, unipartite, unipolar, univalent, univocal,