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Parent Categories

entity go
that which is perceived or known or inferred to have its own distinct existence (living or nonliving)

abstraction, abstract entity go
a general concept formed by extracting common features from specific examples

psychological feature go
a feature of the mental life of a living organism

event go
something that happens at a given place and time

act, deed, human action, human activity go
something that people do or cause to happen

activity go
any specific behavior

representation go
an activity that stands as an equivalent of something or results in an equivalent

pictorial representation, picturing go
visual representation as by photography or painting

imaging, tomography
(medicine) obtaining pictures of the interior of the body

noun.act

5 Subcategories

X-raying, X-radiation go
obtaining images by the use of X rays
sonography, ultrasonography, echography, ultrasound go
using the reflections of high-frequency sound waves to construct an image of a body organ (a sonogram)
positron emission tomography, PET go
using a computerized radiographic technique to examine the metabolic activity in various tissues (especially in the brain)
magnetic resonance imaging, MRI go
the use of nuclear magnetic resonance of protons to produce proton density images
radioscopy, radiology go
(radiology) examination of the inner structure of opaque objects using X rays or other penetrating radiation