eido-, eid-; ido-, id- +

1. Related to or having total visual recall of anything previously seen; characterized by exact visualization of events or of objects previously seen.
2. In psychiatry, pertaining to or characterized by clear visualization (even by a voluntary act) of objects previously seen.

Eidetic images (also known as primary memory images) are clearer and richer in detail than the usual memory images and are also more intense and of better quality. Except that the subject recognizes the eidetic image as a memory experience, the phenomenon is analogous to a hallucination. Visual eidetic imagery is more common than auditory.

Eidetic people can readily reproduce in their minds, with great accuracy and detail, what they have seen recently or from some past event. Eidetic imagery is considered by some to be one of the most important elements for the mastery of chess.

A substance that is capable of modifying the form (development) of an embryonic organ already in the process of formation.

An instrument for enlarging or reducing drawings.

A system for enlarging or reducing drawings.

Of the nature of an eidolon.

A belief in ghosts and their power to affect men.

One who demolishes idols.

1. A ghostly figure or image: While Grace is sleeping, an eidolon suddenly appears in her dream warning her about the hurricane that will be coming into the area where she lives.
2. In art, a small winged figure, human or combining human with animal elements, often found in Greek vase paintings: The very old urns and pitchers in the local museum were decorated with eidola showing the artistry of the ancient masters. © ALL rights are reserved.

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An instrument for measuring visual acuteness of the perception of form.

Measurement of visual perceptions.

1. In philosophy, form; species.
2. Idea; used by Plato.
3. The formal content of a culture, encompassing its system of ideas; criteria for interpreting experience, etc.

A contrivance for illustrating the motions of the heavenly bodies.

Shapely, comely.

A short poem, descriptive of some picturesque scene or incident, chiefly in rustic life.

An instrument for exhibiting the phenomena of sound-waves, by means of a vibrating rod or plate having a reflector at the end.