brush
1
8.4
- noun
- /brʌʃ/
- Specialized
:
escobilla
- Direct current brush motors, besides having brushes, suffer from lower torque density than brushless DC.
- brush motor
- DC brush
- brush and commutator
Examples
-
At best, the motor's brushes last for 6,000 hours before wearing out.
Academic text (2007) -
So now my closed circuit goes like this, from the multimeter to this brush, across the disk, down this brush, back to the multimeter.
-
- Some of these carbon brushes are worn.
-
At a large gap spacing, the brush seals have a very pronounced effect.
Academic text (1998) -
Power rating ranges from 3.8 W with precious metal brushes to 5 W for the graphite brush version.
Academic text (1996) -
On average, the leakages with brush seals were half those of the gap-controlled baseline configuration.
Academic text (1998) -
The technician replaced the worn carbon brush to improve the motor's efficiency.
-
Without a proper current, the brush in the generator cannot create electricity.
-
The engineer explained how the brush connects the rotating part of the motor to the stationary part.
Idioms
- Informal
2
7.2
Describe people or things in very general ways that ignore important details
- Informal
1
8.7
Unfairly judge a whole group because of one person's actions
Compounds
- Specialized
1
3.7
A brush with short, stiff hairs for cleaning or painting rough surfaces
- Specialized
1
7.0
A painting tool with soft sable hairs that makes fine, flexible points
- Specialized
1
5.1
A way of painting that uses very little paint to make a rough, scratchy texture
1
1.6
A small brush that you use to put cream or soap on your face before using a razor
- Specialized
A faint blue electric glow with many thin light rays that appears when high voltage makes a spark
- Australian
A small or medium animal like a kangaroo that lives in forests and thick bushes
- Australian
A large black bird that builds big nesting mounds in the woods of Australia and New Guinea
- Specialized
A medium to large butterfly with bright wings and small front legs not used for walking
- Specialized
A large animal with sharp spines and a brush of stiff hairs at the end of its tail
- Australian
A small animal from Australia and New Guinea that lives in trees and has a pouch and a bushy tail
- Specialized
A rodent with a brush of stiff, bead-like hairs at the tip of its tail
- US
A spreading evergreen shrub with small flowers that grows on dry hills in the southwestern United States
- US
A shrub with thin hairy branches and bright yellow flowers that smells nice and grows on western plains
- Specialized
A long thin paint brush used for painting very fine lines like the ropes on a ship
A tree from Mexico and Guatemala with dense hairy flowers that look like brushes at branch ends
Surface Forms
Etymology
The electrical brush is named for its brush-like shape: early brushes were bunches of wires or fibres that touched the moving part, so the name comes from 'brush' as a group of hairs or fibres that rub against something.