under a microscope

under a microscope

also under the microscope
in a way that something can be examined carefully The new law allows the president to hold every item of spending under a microscope.
Etymology: from the literal meaning of microscope (a device used for scientific study that makes very small objects look larger)
See also: microscope
References in classic literature ?
I was all tuckered out tryin' to mislead 'em and deceive 'em and sidetrack 'em; but the minute I got where I wa'n't put under a microscope by day an' a telescope by night and had myself TO myself without sayin' `By your leave,' I begun to pick up.
Some of the water placed in a glass was of a pale reddish tint; and, examined under a microscope, was seen to swarm with minute animalcula darting about, and often exploding.
While looking at things under a microscope, you might discover there are deeper issues beneath the surface.