Petroleum Alternatives
1. constraint n. Something that restricts thought or action
The constraints of military life kept Eileen from seeing
Private Morris more than once a month.
Parts of speech
constrain v
2. contamination n. Being made less clean by a germ or
hazardous substance
The contamination in the river came from the factory located
just upstream.
Parts of speech
contaminate v, contaminant n
3. deplete v. To greatly decrease the supply of a resource
or material
The prolonged war depleted the country’s national treasury.
Parts of speech
depletion n
4. dispose of v. To throw away; to get rid of; to kill
She disposed of her unwanted possessions before moving.
The tyrant cruelly disposed of all his enemies.
Usage tips Dispose
of should be learned as a unit. In this meaning, dispose does not occur without
of.
Parts of speech
disposal n, disposable adj
5. elementally adv. In terms of elements; basically
Elementally, coal and diamonds are the same.
Parts of speech
element n, elemental adj
6. emission n. Sending out from a small space into the
general environment; a substance discharged into the air
The Environmental Protection Agency regulates the emission
of pollutants into the air.
Usage tips
Emission is usually followed by an of phrase.
Parts of speech
emit v
7. extinction n. Complete disappearance; the end of
existence
Human beings have caused the extinction of many other
species.
Usage tips
Extinction implies an absolute end; an extinct thing cannot be brought back
into existence.
Parts of speech
extinct adj
8. reservoir n. A place where a liquid is collected and
stored
Cult members threatened to poison the town’s water
reservoir.
Parts of speech
reserve v
9. shrink v. To become reduced in size, amount, or value
If you dry your clothing on the “high heat” setting, they
may shrink.
Parts of speech
shrinkage n, shrinkable adj
10. stable adj. Firm and dependable; showing little change
He fell because the ladder wasn’t stable.
Parts of speech
stability n, stably adv
No comments:
Post a Comment