Tetramerous ... Having four parts, or parts arranged in groups of four, or capable of existing in four forms. ... Origin: tetra-+ G. Meros, part ... (05 Mar 2000) ... 
(tet″rә-mer´ik) having four parts.
Type: Term Pronunciation: tet′ră-mer′ik, tĕ-tram′ĕ-rŭs Definitions: 1. Having four parts, or parts arranged in groups of four, or capable of existing in four forms.
having four parts, or parts arranged in groups of four, referrring to the tarsi of insects