tourniquet UK /ˈtʊə.nɪ.keɪ/US /ˈtɝ.nɪ.kɪt/noun 3verb 1forms 5 noun3 •A tightly-compressed bandage used to stop bleeding by stopping the flow of blood through a large artery in a limb.[…] Bull was in the bathroom taking his fix, clutching his old black necktie in his teeth for a tourniquet and jabbing with the needle into his woesome arm with the thousand holes;[…] — 1957 •Any of several similar methods of clamping components into position. •(no longer used) A turnstile. verb1 •To apply a tourniquet bandage. formstourniqueted · tourniquetted · tourniqueting · tourniquetting · tourniquets