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Copulate means to have sex. It is a cold, formal, biology-class word, not a bedroom word and not a joke. Scientists use it of animals; doctors may use it of people in a medical note. Friends do not. Though actually, the Latin underneath is milder than the English feels: it meant to join or couple two things. English narrowed it to this one joining. If you use it of people in ordinary talk, it can sound like a lab report — distant, and a little . For animals, it is the normal textbook verb.
交配（多用於動物／生物）；性交（醫護、書面）
組成From Latin copulatus, from copulo, 'to join, couple'. The English ending -ate makes it a verb.
同家族的字
- copulationthe noun for the same act
- couplesame Latin idea of joining two things
- copulasame Latin root: a joining
原始詞典資料3 筆記錄
以下是外部詞典記錄的用法，原文照列，我們還沒有寫成教學內容。上面的說明才是我們自己寫的；有些用法可能上面已經講過了。
copulateverb詞源 1/ˈkɒp.jʊ.leɪt/
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formalTo engage in sexual intercourse.
- The amorous couple were found copulating inside the car.
copulateadj詞源 2/ˈkɒp.jʊ.lət/
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obsoleteJoined; associated; coupled.
- the force of custome copulate, and conioyn'd
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grammarhuman-scienceslinguisticsJoining subject and predicate; copulative.
- Copulate words may be really a simple subject, 1, a repetition of the same notion, often a climax
資料來源：英文維基詞典 English Wiktionary（CC BY-SA 4.0）。 原文照列，未經改寫。