400 Words for TOEFL (Unknown ones) Flashcards
(246 cards)
irrigation
The supplying of water to dry land
In dry areas of the country, you can see ditches all over the farm- land for irrigation.
precipitation
Water that falls to the Earth’s surface
famine
Severe hunger; a drastic food shortage
persevere
To keep going, despite obstacles or discouragement; to maintain a purpose
plunge
To go down suddenly; to decrease by a great amount in a short time
constraint
Something that restricts thought or action
The constraints of military life kept Eileen from seeing Private Mor- ris more than once a month.
deplete
To greatly decrease the supply of a resource or material The prolonged war depleted the country’s national treasury
dispose of
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.
elementally
In terms of elements; basically Elementally, coal and diamonds are the same.
arbitrary
Chosen simply by whim or chance, not for any specific
reason. The decision to build a school in Blackberry Township was
arbitrary, without any thought to future housing patterns.
denominator
The number written below the line in a fraction In the fraction 1⁄2, the number 2 is the denominator.
Usage tips The phrase lowest common denominator means “the most basic and unsophisticated things that most people share.”
infinitesimal
Immeasurably small
The number of contaminants in the water was infinitesimal, so the water was safe to drink.
rate
The cost per unit of a good or service; the motion or change that happens in a certain time.
Postal rates in Japan are among the highest in the world.
adjacent
Next to
Even though the villages are adjacent to each other, their residents
speak different languages.
feasibly
Practically; in a way that can work
Scientists can’t feasibly bring energy from deep ocean currents to
where it is needed—on land.
gut
To empty or hollow out
In order to remodel the house, we must first gut it and throw away
all the old fixtures.
integrally
In a whole or complete manner
Writing and spelling are taught integrally as part of the reading program.
retain
To keep or hold
The rain fell so heavily that the banks of the river could not retain all the water.
seep
To pass slowly for a long time, as a liquid or gas might
As the containers rusted, the toxic waste seeped into the ground
circulate
To move throughout an area or group; to move along a
somewhat circular route
The gossip circulated quickly through the small town
corrode
To be slowly weakened by chemical reactions
Sitting in salt water, the old coins corroded and became very easy to
break.
derive
To come from, usually through a long, slow process The Cyrillic alphabet was derived from the Greek alphabet
detection
Discovering something that cannot easily be found With new medical technology, the detection of cancer is much easier
nowadays.
expeditiously
Quickly and efficiently
Using carrier pigeons, the military commanders exchanged mes-
sages expeditiously.