in extremis
(Latin 拉)
1 (fml 文) (as a last resort when) in an emergency 在紧急关头; 应变措施
This alarm button is only to be used in extremis. 此警报按钮只在紧急情况下使用.
2 (religion 宗) (in the Roman Catholic Church) about to die (天主教会用语)临终
administer the last sacrament to sb in extremis 给临终的人傅油.