smelling salts

noun
🔊/ˈsmelɪŋ sɔːlts/, 🔊/ˈsmelɪŋ sɒlts/
🔊/ˈsmelɪŋ sɔːlts/
[plural]
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  1. a chemical with a very strong smell, kept in a small bottle, used especially in the past for putting under the nose of a person who has become unconscious嗅盐(有刺鼻的气味,旧时用作苏醒剂)