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Vocabulary

Unit 15

Word list.

aggregate [ˈӕgrəgit] adj. When a number is aggregate, it is made up of smaller amounts added together.

The company totaled its aggregate sales for the entire year.

antibiotic [ˈæntibaiˈɒtik] n. An antibiotic is a medical drug used to kill bacteria and treat infections.

The doctor gave me a shot of an antibiotic when I got the flu.

circuit [ˈsəːrkit] n. A circuit is a piece of an electronic device that allows electricity to flow.

Be very careful not to shock yourself when fixing an electrical circuit.

complement [ˈkɒmpləment] v. To complement something or someone is to make them better.

The wool scarf complemented her lovely eyes.

compress [kəmˈpres]
v. To compress something means to press or squeeze it so that it takes up less space.

I compressed my clothes to fit into a single suitcase.

database [ˈdeitəbeis] n. A database is a collection of data that is stored in a computer.

The company has a database of all the names and accounts of their customers.

equivalent [iˈkwivələnt] n. An equivalent is an amount or value that is the same as another amount or value.

I worked the equivalent of sixty hours this week.

immune [iˈmjuːn] adj. When someone is immune to a disease, they cannot be affected by it.

Children usually get shots to make them immune to certain diseases.

input [ˈinput] n. Input is information that is put into a computer.

Type the input into the computer program.

intimate [ˈintəmit] adj. When a relationship is intimate, the two things are very closely connected.

I only tell my secrets to my most intimate friends.

magnet [ˈmægnit] n. A magnet is a piece of iron or other material which attracts iron toward it.

I used a magnet to pick up the nails that were scattered on the floor.

metabolism [məˈtæbəlizəm] n. A person’s metabolism is the way chemical processes in their body use energy.

If you exercise every day, your metabolism speeds up.

microchip [ˈmaikrouˌtʃip] n. A microchip is a small device in a computer that holds information.

I can put more data on my computer if I buy a more powerful microchip.

phase [feiz] n. A phase is a stage in a process or the gradual development of something.

The first phase in the recycling project involves finding volunteers to help out.

pinch [pintʃ] v. To pinch means to take a piece of skin between one’s fingers and squeeze.

I pinched my nose, so I couldn’t smell the odor from the garbage.

prevalent [ˈprevələnt] adj. When something is prevalent, it is common.

Growing a beard is more prevalent in some countries than anothers.

quantum [ˈkwɒntəm]
adj. When something is quantum, it relates to the behavior of atomic particles.

The physics student studied quantum mechanics.

ratio [ˈreiʃou] n. A ratio is a relationship between two things expressed in numbers or amounts.

The boy to girl ratio is one to three.

spiral [ˈspaiərəl] n. A spiral is a shape which winds round and round as if around a cylinder.

A strand of DNA looks like two interlocking spirals.

viral [ˈvaiərəl] adj. When something is viral, it is a disease or infection that is caused by a virus.

The girl was in bed for a week when she had a viral infection.