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Something "hereditary" is passed down from parents to children through genes, biologically, rather than being learned or chosen - like a hereditary disease that runs in a family, or hereditary hair color. The word is also used outside biology, in a more social or legal sense: a "hereditary title," like a king's crown or a noble title, is passed automatically from parent to child rather than earned or elected.
遺傳的；世襲的
原始詞典資料7 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。
hereditaryadj/həˈɹɛdɪt(ə)ɹi/
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Passed on as an inheritance, by last will or intestate.
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Of a title, honor or right: legally granted to somebody's descendant after that person's death.
- Duke is a hereditary title which was created in Norman times.
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Of a person: holding a legally hereditary title or rank.
- hereditary rulers
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Of a disease or trait: passed from a parent to offspring in the genes.
- Haemophilia is hereditary in his family.
- Xanthuria is an hereditary disorder in which there is an absence of the enzyme xanthine oxidase which interferes with the metabolic breakdown of purines, leading to an increased excretion of xanthine in the urine and to formation of stones.
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mathematicssciencesOf a ring: such that all submodules of projective modules over the ring are also projective.
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graph-theorymathematicssciencesOf a property of graphs: such that if G has the property, so must every induced subgraph of G.
hereditarynoun/həˈɹɛdɪt(ə)ɹi/
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A hereditary ruler; a hereditary peer in the House of Lords.
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。