representational process - any basic cognitive process in which some entity comes to stand for or represent something else

mind's eye - the imaging of remembered or invented scenes; "I could see her clearly in my mind's eye"

vision - a vivid mental image; "he had a vision of his own death"

envisioning, picturing - visual imagery

dream, dreaming - a series of mental images and emotions occurring during sleep; "I had a dream about you last night"

chimaera, chimera - a grotesque product of the imagination

evocation - imaginative re-creation

make-believe, pretense, pretence - imaginative intellectual play

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

X-raying, X-radiation - obtaining images by the use of X rays

sonography, ultrasonography, ultrasound - using the reflections of high-frequency sound waves to construct an image of a body organ (a sonogram); commonly used to observe fetal growth or study bodily organs

positron emission tomography, PET - using a computerized radiographic technique to examine the metabolic activity in various tissues (especially in the brain)

magnetic resonance imaging, MRI - the use of nuclear magnetic resonance of protons to produce proton density images

radioscopy, radiology - (radiology) examination of the inner structure of opaque objects using X rays or other penetrating radiation

medical specialty, medicine - the branches of medical science that deal with nonsurgical techniques