chlordiazepoxide
noun
chlor·di·az·epox·ide ˌklȯr-dī-ˌa-zə-ˈpäk-ˌsīd 
: a benzodiazepine C16H14ClN3O related to diazepam and used in the form of its hydrochloride especially as a tranquilizer and to treat the withdrawal symptoms of alcoholism
Example Sentences
Recent Examples on the Web Alcohol was detected in his blood samples, and a toxicology panel detected the prescription anti-anxiety drugs Nordiazepam and Librium (chlordiazepoxide). 
Jay Cannon, USA TODAY, 17 Dec. 2019 The benzo family includes diazepam, or Valium; clonazepam, or Klonopin; lorazepam, or Ativan; chlordiazepoxide, or Librium; and the one most commonly known to the pop culture, alprazolan, or Xanax, among others. Arash Javanbakht, The Conversation, 18 Oct. 2019
Jay Cannon, USA TODAY, 17 Dec. 2019 The benzo family includes diazepam, or Valium; clonazepam, or Klonopin; lorazepam, or Ativan; chlordiazepoxide, or Librium; and the one most commonly known to the pop culture, alprazolan, or Xanax, among others. Arash Javanbakht, The Conversation, 18 Oct. 2019 Word History
Etymology
chlor- + benzodiazepine + oxide
First Known Use
1960, in the meaning defined above
Medical Definition
chlordiazepoxide
noun
chlor·di·az·epox·ide ˌklōr-dī-ˌaz-ə-ˈpäk-ˌsīd, ˌklȯr-
: a benzodiazepine that is structurally and pharmacologically related to diazepam and is used in the form of its hydrochloride C16H14ClN3O·HCl especially as a tranquilizer and to treat the withdrawal symptoms of alcoholism see librium