The phrase "lost definition" is not a standard grammatical construction and is not commonly used in written English.
It is possible that the speaker or writer intended to say "lost in definition" or "lacks definition," which would be correct and usable phrases. Example: The meaning of this term has been so muddled that it is now lost in definition.
"For the first time in her life she lost definition," Ms. Gornick recalled.
After maintaining its peak intensity for about 36 hours, Francisco began weakening, after the eye lost definition due to building wind shear.
As it turned out, for most of my adolescence, my joint disintegrated, my top and bottom teeth stopped hitting each other when I bit down, my chin receded, my nose drooped slightly, and I lost definition in my face (my cheekbones went from high to low and wide).
The image, reduced to a series of dots, has begun to lose definition.
With so much clutter, the emotions lose definition and the politics go fuzzy with them.
He's losing definition in his voice, but in ways that are less interesting than Bob Dylan, Neil Young or Tom Waits.
Perhaps he loses definition when denied the chance to speak in his natural accent, just as Maggie Smith, crisply coy with her Scottish tones, is allowed to veer, a little too close for comfort, toward the dotage of Miss Jean Brodie.
I saw the first ash enter the air like a drop of dye in water, shooting forward then folding in on itself, expanding, losing definition, before being recharged with another burst.
It's some time in the late evening, it's hard to be exact: time, for the parents of babies clinging to life in a paediatric intensive care unit, turns thick and sticky, its edges lose definition and hours disappear.
It costs nothing to adjust your ISO setting, which increases the camera's sensitivity to light, but typically lowers the quality of the image - you are likely to lose definition and get those grainy speckles called "noise".
"Another Autumn," for instance, is a series of one-line sketches — "a feathering of the ink whereby characters lose definition" is followed by "overlapping windowscreens, one pattern interfering with another," which is in turn followed by "sideways, all the politeness, all that irony, trying for a draw" (an echo of a line from "A Pillow-Book," a much earlier O'Brien poem).
