| Sanson's images | <ophthalmology, physiology> The two images formed by the anterior and posterior surfaces of the cornea and the two images formed by the anterior and posterior surfaces of the lens. Synonym: catatropic image, Purkinje images, Sanson's images. (05 Mar 2000) |
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| homonymous images | Double image's produced by stimuli arising from points proximal to the horopter. Synonym: homonymous diplopia, simple diplopia, uncrossed diplopia. (05 Mar 2000) |
| Purkinje images | <ophthalmology, physiology> The two images formed by the anterior and posterior surfaces of the cornea and the two images formed by the anterior and posterior surfaces of the lens. Synonym: catatropic image, Purkinje images, Sanson's images. (05 Mar 2000) |
| Purkinje-Sanson images | <ophthalmology, physiology> The two images formed by the anterior and posterior surfaces of the cornea and the two images formed by the anterior and posterior surfaces of the lens. Synonym: catatropic image, Purkinje images, Sanson's images. (05 Mar 2000) |
| phantom | That which has only an apparent existence; an apparition; a specter; a phantasm; a sprite; an airy spirit; an ideal image. "Strange phantoms rising as the mists arise." (Pope) "She was a phantom of delight." (Wordsworth) Phantom ship. See Flying Dutchman, under Flying. <medicine> Phantom tumour, a swelling, especially of the abdomen, due to muscular spasm, accumulation of flatus, etc, simulating an actual tumour in appearance, but disappearing upon the administration of an anaesthetic. Origin: OE. Fantome, fantosme, fantesme, OF. Fantome, fr. L. Phantasma, Gr, fr. To show. See Fancy, and cf. Phaeton, Phantasm, Phase. Source: Websters Dictionary (01 Mar 1998) |
| phantom aneurysm | A palpable throbbing aorta, mistaken by novices for an aneurysm. (05 Mar 2000) |
| phantom corpuscle | A hypochromic, crescent-shaped erythrocyte, probably resulting from artifactual rupture of a red cell with loss of haemoglobin. Synonym: achromacyte, achromatocyte, ghost corpuscle, phantom corpuscle, Ponfick's shadow, shadow corpuscle, shadow, Traube's corpuscle. Origin: G. A-priv. + chroma, colour, + kytos, hollow (cell) (05 Mar 2000) |
| phantom limb | The sensation, after amputation of a limb, that the absent part is still present; there may also be paresthesias, transient aches, and intermittent or continuous pain perceived as originating in the absent limb. (12 Dec 1998) |
| phantom limb pain | The sensation, after amputation of a limb, that the absent part is still present; there may also be paresthesias, transient aches, and intermittent or continuous pain perceived as originating in the absent limb. (12 Dec 1998) |
| phantom pregnancy | An obsolete term for false pregnancy. (05 Mar 2000) |
| phantom tumour | Accumulation of fluid in the interlobar spaces of the lung, secondary to congestive heart failure, radiologically simulating a neoplasm. (05 Mar 2000) |
| Schultze's phantom | A model of a female pelvis used in demonstrating the mechanism of childbirth and the application of forceps. (05 Mar 2000) |