a hygroscopic powder (trade name Pentothal) that is a strong fast-acting barbiturate; induces a relaxed state when injected as a general anesthetic.

• 有迅速疗效的巴比妥酸盐是一种吸温的粉（贸易名字Pentothal）；当被作为一种全身麻醉剂注入时会产生轻松的感觉。