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4000 Essential English Words 4 Unit 23: How the Dinosaurs Really Died

4000 Essential English Words 4 Unit 23: How the Dinosaurs Really Died

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Word List

  • accurate [ˈækjərit] adj. 

If something is accurate, it is completely correct.

 The story in the newspaper wasn’t very accurate.

  • analyze [ˈænəlaiz] v. 

To analyze something is to study it.

 The scientist will analyze the blood sample.

  • asteroid [ˈæstərɔɪd] n. 

An asteroid is a giant rock from outer space.

 In 1908, a giant asteroid hit Siberia.

  • controversy [kɒnˈtrəvə:rsɪ] n. 

controversy is a dispute about something that affects many people.

 There has been a lot of controversy over the judge’s decision.

  • evolve [iˈvɒlv] v. 

To evolve is to change over time.

 Many people think that humans evolved from animals.

  • factor [ˈfæktər] n. 

factor is something that has an effect on the way another thing happens.

 Smoking is the main factor that causes lung cancer.

  • genetic [dʒiˈnetik] adj. 

If something is genetic, it is related to the genes in one’s body.

 The color of one’s eyes is genetic.

  • genome [ˈdʒiːnoum] n. 

genome is the collection of all the genes in a living thing.

 Understanding the human genome may help cure many diseases.

  • identical [aiˈdentikəl] adj. 

To be identical is to be the same as someone or something else.

 James and John are identical twins.

  • intellectual [ˌɪntəˈlektjuəl] n. 

An intellectual is a very smart person.

 We’ve always considered my Uncle Max the intellectual of the family.

  • majority [məˈdʒɔ(:)rətɪ] n. 

majority of something is almost all of the people or things in that group.

 A majority of the people voted for Tom Smith in the election.

  • mammal [ˈmæməl] n. 

mammal is an animal that usually has hair and is not born from an egg.

 Even though it lives in the water, whales are actually mammals.

  • multiply [ˈmʌltəplai] v. 

To multiply is to increase in number.

 In the past year, the number of people at work multiplied by ten percent.

  • offspring [ˈɔ:fspriŋ] n. 

Offspring are the children of a person or the babies of an animal.

 The dog’s offspring had the same color of fur as she did.

  • pesticide [ˈpestəsaid] n. 

pesticide is a substance used to kill insects.

 The farmer sprayed his crops with a pesticide to keep bugs away.

  • regulate [ˈregjəleit] v. 

To regulate something is to control how it happens.

 The bank regulates how much money people can borrow from it.

  • reinforce [riːinˈfoːrs] v. 

To reinforce something is to make it stronger.

 Peter reinforced his opinion with information from a book.

  • stricken [ˈstrikən] adj. 

If one is stricken by a disease or problem, they are badly affected by it.

 Mike was stricken with a horrible illness.

  • vast [væst] adj. 

If something is vast, it is very large.

 The wealthy man bought a vast amount of land in the countryside.

  • vegetarian [ˌvedʒəˈtɛəriən] n. 

vegetarian is someone who does not eat any meat products.

 I became a vegetarian because I don’t like the taste of meat.

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