|Origin:||Probably from blear; BLEARY|
blur2 past tense and past participle blurred, present participle blurring [intransitive and transitive]
to become difficult to see or to make something difficult to see, because the edges are not clear:
The street lights were blurred by the fog.
Many of the details in the picture are blurred.
to make the difference between two ideas, subjects etc less clear:
His films blur the boundaries between fact and fiction.
The design of the conservatory is meant to blur the distinction between the house and the garden.
—blurry adjective:➔ blurred
a few blurry photos of their holiday