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acid

[eesid] n.

An acid is a chemical that can burn or dissolve other substances. —*In chemistry class, we mixed two acids together and watched the reaction.

administration

[adminastreijan] n.

An administration is the group of people who manage a company or organization. —►She hoped she could be promoted to a job in the administration.

administrative

[adminastreitiv] adj.

Administrative describes anything related to managing a company or organization. - » I work as an administrative assistant to the owner of the company.

biotechnology

[baiouteknalad3 i] n.

Biotechnology is the use of living parts, such as cells, in industry and technology. —►Researchers at the biotechnology company use bacteria to make medicine.

cholesterol

[kalestaroul] n.

Cholesterol is a substance in fat, tissues, and blood of all animals. -» When people have too much cholesterol, they are at a high risk for heart problems.

coalition

[koualijan] n.

A coalition is a group of people or organizations working for a common purpose. -* The companies formed a coalition to make trade less expensive.

deceptive

[diseptiv] adj.

When something is deceptive, it encourages one to believe something that is false. —► The scary-looking man’s appearance is deceptive, but he is actually very nice.

diabetes

[daiabf:tis] n.

Diabetes is a medical condition where a person has too much sugar in their blood. —» Overweight people are more likely to suffer from diabetes than slimmer ones.

eliminate

[ilimaneit]

V.

To eliminate something that is unwanted means to completely remove it. -» Wearing a seatbelt eliminates some of the dangers of driving a car. e r o s io n [irou3 an] n.

Erosion is the destruction of rock or soil due to flowing water or weather. —► Canyons are formed because rivers of fast-moving water caused erosion.

4000 essential english words 5  

4000 Essential English Words is a six-book series that is designed to focus on practical high-frequency words to enhance the vocabulary of l...

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