copulin

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English[edit]

Etymology[edit]

copulate +‎ -in

Noun[edit]

copulin (plural copulins)

  1. (biochemistry) Any of a class of aliphatic acids that are found in vaginal fluids and used to signal ovulation.

Catalan[edit]

Verb[edit]

copulin

  1. third-person plural present subjunctive form of copular
  2. third-person plural imperative form of copular