(ser'ĕ-nō-ūd'), An instrument for tightening a ligature. [Fr. serrer, to press, + noeud, knot]
serrenoeud
S06-853820 (sār-nŭd′) [Fr. serrer, to squeeze, + noeud, knot] A device for tightening ligatures, esp. those placed on vessels in a deep cavity out of reach of the fingers.