To observe or inspect carefully or critically.
He examined the crime scene for clues.
She examined the hair sample under a microscope.
(RQ:Schuster Hepaticae V)
With fresh material, taxonomic conclusions are leavened by recognition that the material examined reflects the site it occupied; a herbarium packet gives one only a small fraction of the data desirable for sound conclusions. Herbarium material does not, indeed, allow one to extrapolate safely: what you see is what you get(..)
To check the health or condition of something or someone.
The doctor examined the patient.
To determine the aptitude, skills or qualifications of someone by subjecting them to an examination.