asphyxian. 窒息無脈、絕脈(舊名)學術名詞窒息：畜牧學、航空太空、動物學、機械工程、獸醫學、醫學英文釋義a condition in which insufficient or no oxygen and carbon dioxide are exchanged on a ventilatory basis; caused by choking or drowning or electric shock or poison gas