The attitude or assumption of a partly supine position. ... (05 Mar 2000) ... 
(sem″e-soo″pĭ-na´shәn) a position halfway toward supination.
Type: Term Pronunciation: sem′ē-sū′pi-nā′shŭn Definitions: 1. The attitude or assumption of a partly supine position.
semisupination 1. A position of partial or incomplete supination. 2. The act of bringing someone to such a position.semisupine, semisupination 1. Partly but not completely supine. 2. The attitude or assumption of a partly supine position (posture of an individual lying face up).