collimator

As nouns the difference between collimator and grating

is that collimator is (physics) an optical device that generates a parallel beam of light often used to compensate for laser beam divergence while grating is a barrier that has parallel or crossed bars blocking a passage but admitting air.

As an adjective grating is

(typically of a voice) harsh and unpleasant.

As a verb grating is

.

As a verb condense

is to decrease size or volume by concentration toward the essence.

As an adjective condense

is condensed; compact; dense.

As a noun collimator is

an optical device that generates a parallel beam of light. Often used to compensate for laser beam divergence.

As nouns the difference between taxonomy and collimator

is that taxonomy is the science or the technique used to make a classification while collimator is (physics) an optical device that generates a parallel beam of light often used to compensate for laser beam divergence.