systolometer

(sis-to-lom’et-er) (Gr. συστολή systole +. μέτρον measure]. An instrument for determining the quality of the heart-sounds. sys (sis-trem’ah) (Gr. σύστρεμμα twist, ball]. A cramp in the muscles of the calf of the leg. syzygial (siz-ij‘e-al). Pertaining to syzygy.