“洗胃”的英语表达是 gastric lavage 。其中,“gastric”意为“胃的”,“lavage”有“灌洗;清洗(尤指体内腔道)”之意,二者组合起来就准确表达了“洗胃”这一医疗操作。
例如:The doctor decided to perform gastric lavage on the patient who had ingested a large amount of toxic substances.(医生决定对那位吞食了大量有毒物质的患者进行洗胃。)