Phantom

2 Something existing in perception only: "

1

 

"phantom" was first used in popular English literature: sometime before 1120. (references)

Etymology: Phantom \Phan"tom\, noun. [Old English fantome, fantosme, fantesme, Old French fant[^o]me, from Latin phantasma, Greek, show. See Fancy, and compare to Pha["e]ton, Phantasm, Phase.]. (references)

 

Specialty Definition: Phantom

Domain

Definition

Dream Interpretation

To dream that a phantom pursues you, foretells strange and disquieting experiences.
To see a phantom fleeing from you, foretells that trouble will assume smaller proportions. Source: Ten Thousand Dreams Interpreted ....

Medicine

Visual hallucination or illusion. Source: European Union. (references)

 

Used to absorb and/or scatter radiation equivalently to a patient, and hence to estimate radiation doses and test imaging systems without actually exposing a patient. It may be an anthropomorphic or a physical test object. Source: European Union. (references)

 

A volume of material behaving in essentially the same manner as tissue of the same dimensions, with respect to absorption and scattering of the radiation in question. Source: European Union. (references)

Post & Telecom

Radar indicator signal, the origin of which cannot readily be determined. Source: European Union. (references)

Transportation

An erroneous indication given by a signal providing an interference light. Source: European Union. (references)

Source: compiled by the editor from various references; see credits.

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