fillermaterial
nounUK /ˈfɪlə məˈtɪəriəl/
US /ˈfɪlər məˈtɪriəl/
A filler material is stuff used to fill up empty space.
The builder used sand as a filler material to level the ground.
RELATED WORDS
OTHER MEANINGS
2. A substance added to a product to make it cheaper or heavier without changing how it works.
The plastic toy contains a cheap filler material to lower the cost.
3. Material used in welding to fill a joint between two metal pieces.
The welder chose a filler material that matches the steel.
4. Extra words or content used to make a speech or text longer.
His essay was mostly filler material and had few real ideas.