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base

base

10 5.7
A chemical that neutralizes an acid and often turns litmus paper blue
  • noun
  • /beɪs/
  • Specialized
: base
  • Sodium hydroxide is a strong base that can react with acids to form salt and water.
  • acid-base
  • base neutralization
  • aqueous base

So like what's the hard hard soft acid base theory like?

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Examples

  • In chemistry class, we learned that a strong base can change litmus paper from red to blue.

  • Ammonia is commonly used as a base in various chemical reactions.

  • Again, this is more of a wax base than it is a cream.

  • Iraq's industrial base is not solid enough for the domestic production of capital goods.

    Academic text (1995)
  • For centuries alchemists tried to make gold from base metals.

  • This is a water base liquid compound reacting with a foreign substance.

  • Approximately 2,500 cells were suspended in medium with 0.35% agar and seeded over the base layer.

    Academic text (2015)

Idioms

5 7.7

To make the first real progress in work or a relationship

2 9.6

Close to having sex with someone you are dating

A funny phrase people use online to say they have won

To turn completely upside down while falling

Compounds

58 3.4

A place at the start of a trip for climbing or hiking where people rest and keep supplies

air base
  • Specialized
55 3.3

A military place where people keep, fix, and fly planes and helicopters

47 3.2

A group of people who strongly support someone like a singer or sports team

36 3.4

The main office where a company or group does its work

31 3.7

The second of four bases a runner touches when running to score

28 2.4

The first of four points on the field that a runner must touch to score

23 3.0

A white square on the field at the third corner that a runner must touch to score

tax base
  • Specialized
20 4.2

The total value of income, goods, or sales a government can collect money from

18 2.6

A place where soldiers live, train, and work

16 3.1

A player who stands near the third corner and stops balls hit there

A place where people plan and start activities like a military camp or company office

13 3.3

A hit that lets the batter reach base safely, not because of an error or fielder's choice

knowledge base
  • Specialized
11 3.4

A collection of information about a subject that helps people or companies find answers

10 3.1

A player who stands at first base to catch throws and get runners out

first base
  • Informal
9 4.4

An early step toward reaching a goal

8 4.2

A player who stands near second base and catches or stops ground balls

8 8.0

A stage in a relationship when people touch above the waist

base pair
  • Specialized
8 3.9

Two matching chemical parts in DNA or RNA that join the two strands, for example adenine with thymine

6 3.4

A place where the navy keeps, fixes, and supplies its ships

5 3.0

A flat rubber square that the batter stands beside and runners touch to score

3 5.5

A key interest rate set by the Bank of England that other loan rates follow

3 5.9

The number of a company's products that people use now, like devices or software

base runner
  • Specialized
2 3.5

A batting team player on base or running to reach a base

base metal
  • Specialized
2 4.0

A common metal like iron or copper that is not as valuable as gold

base on balls
  • Specialized
1 5.5

An advance to first base after a batter receives four pitches outside the strike zone

1 4.8

A military place where people keep, fix, and send rockets into the sky

A type of paint that uses water instead of oil

two-base hit
  • Specialized
1 4.2

A baseball play when the batter reaches second base safely

acid-base balance
  • Specialized
1 4.2

The amount of acids and bases in the body that keeps fluids at the right pH

1 5.1

A baseball hit that lets the batter reach third base safely

prisoner's base
  • Baby Talk
1 8.4

A children's game where two teams try to tag players from the other team and bring them to their base

acid-base equilibrium
  • Specialized
1 4.8

A balance of acids and bases in the body that keeps it working

acid-base indicator
  • Specialized
1 4.2

A chemical that changes color to show if a liquid is acidic or basic

copper-base alloy
  • Specialized
1 5.1

A metal made mostly of copper mixed with other metals like tin or zinc

nickel-base alloy
  • Specialized
1 6.0

A metal made mainly of nickel that resists very high heat and chemical damage

base wallah
  • Indian
9.9

A person who manages supplies and daily tasks at a base, like transport and housing

fifth base
  • Offensive
9.9

A slang phrase for having sex as the final step in dating

rubber-base paint
  • Specialized
4.2

A water-based paint that stays flexible, lasts a long time and resists moisture

How Basic

alkali
  • Specialized
3 7.0
base
  • Specialized
10 5.7
neutral
  • Specialized
5 5.2
acid
  • Specialized
357 2.9

Surface Forms

base singular
bases plural

Etymology

Base in chemistry comes from the same old idea of basis as a 'support' and was used in early chemistry to mean a substance that joins with an acid. So a chemical base is a substance that 'supports' or balances an acid, which is why it can neutralize acid.