phantom (redirected from Phantom (disambiguation))

phantom /phan·tom/ (fant´um)

1. phantasm.

2. a model of the body or of a part thereof.

3. a device for simulating the in vivo effect of radiation on tissues.

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phan·tom or fan·tom (fntm)

n.

1. Something apparently seen, heard, or sensed, but having no physical reality.

2. An image that appears only in the mind; an illusion.

3. A model, especially a transparent one, of the human body or of any of its parts.

adj.

1. Resembling, characteristic of, or being a phantom; illusive.

2. Fictitious; nonexistent.

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phantom

[fan′təm]

Etymology: Gk, phantasma, vision

a mass of material similar to human tissue used to investigate the effect of radiation beams on human beings. Phantom materials can range from water to complex chemical mixtures that faithfully mimic the human body as it would interact with radiation.

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Phantom

A mass or ‘dummy’ that approximates tissue densities and characteristics in its physical properties, which is used to calibrate the dose applied to a tissue with cancer that will undergo radiation therapy

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phantom [fan´tom]

1. an image or impression not evoked by actual stimuli.

2. a model of the body or of a specific part thereof.

3. a device for simulating the in vivo effect of radiation on tissues.

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phantom (fan´tum),

n a device that absorbs and scatters x-radiation in approximately the same way as the tissues of the body.

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phantom

1. a model of the body or of a specific part thereof.

2. a device for simulating the in vivo effect of radiation on tissues.

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phantom mare

a dummy of a mare used to collect semen for artificial insemination. A padded, hollow device about the height and width that would suit the stallion to be used. Excellent for collecting from an insecure or lame stallion.

phantom parturition

see false pregnancy.

phantom pregnancy

see false pregnancy.

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phantom

Radiology A mass or dummy that approximates tissues in its physical properties that may be used to calibrate or determine the dose of radiation applied to a tissue. Cf Ballistic jelly.