Computers
Definitions and Samples
1. circulate v. To move throughout an area or group; to move along a
somewhat circular route
The gossip circulated quickly through the small town.
Blood circulates more quickly during physical exercise.
Usage tips Circulate is often followed by through.
Parts of speech circulation n
2. corrode v. To be slowly weakened by chemical reactions
Sitting in salt water, the old coins corroded and became very easy to
break.
Usage tips A familiar kind of corrosion produces rust, the reddish
coating on iron or steel that has been exposed to air and water.
Parts of speech corrosion n
3. derive v. To come from, usually through a long, slow process
The Cyrillic alphabet was derived from the Greek alphabet.
Usage tips Derive is often followed by from.
Parts of speech derivation n, derivative adj
4. detection n. Discovering something that cannot easily be found
With new medical technology, the detection of cancer is much easier
nowadays.
Usage tips Detection is often followed by an of phrase.
Parts of speech detect v, detectable adj
5. expeditiously adv. Quickly and efficiently
Using carrier pigeons, the military commanders exchanged messages
expeditiously.
Parts of speech expedite v, expedition n, expeditious adj
6. implement v. To make use of; to carry out
Not until after the new software was installed could we implement
the new filing system.
Parts of speech implement n, implementation n
7. innovative adj. Ahead of the times; novel
The innovative use of props and lighting drew many favorable
comments.
Parts of speech innovation n
8. installation n. Setting something into position for use
Installation of the new software takes only four minutes.
Parts of speech install v
9. maintenance n. The act of keeping something in good condition
The only problem with living in such a big house is that it requires
a lot of maintenance.
Parts of speech maintain v
10. simulation n. An imitation or representation
To test car safety, automobile makers study crash simulations.
Parts of speech simulate v, simulator n
TOEFL Prep I Circle the most likely meaning of the word part
that is shared within each set of words.