hardener

[ hahr-dn-er ]

noun

1. a person or thing that hardens.
2. a substance mixed with paint or other protective covering to make the finish harder or more durable.
3. Photography. a chemical used to raise the melting point of an emulsion.

ˈhardener

/ ˈhɑːdənə /

noun

1. a person or thing that hardens
2. a substance added to paint or varnish to increase durability
3. an ingredient of certain adhesives and synthetic resins that accelerates or promotes setting

Word History and Origins

Origin of hardener¹

First recorded in 1605–15; harden + -er ¹

Example Sentences

Guet and guiv demand dhe (u) hardener, az boldly az gues and guilt.

From Project Gutenberg

A recent rival of tungsten both as a filament for lamps and hardener for steel is molybdenum.

From Project Gutenberg

They are so cruel, without even knowing that they are so: the habit of seeing sin and suffering is such a heart-hardener.

From Project Gutenberg

She was a harmful woman, a destroyer of young tempers, a hardener of young hearts.

From Project Gutenberg