| perichoroidal space | The interval between the choroid and the sclera filled by the loose meshes of the lamina fusca of sclera and the suprachoroid lamina. Synonym: spatium perichoroideale, perichoroid space. (05 Mar 2000) |
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| perichrome | Denoting a nerve cell in which the chromophil substance, or stainable material, is scattered throughout the cytoplasm. Origin: peri-+ G. Chroma, a colour (05 Mar 2000) |
| periclasite | <chemical> A grayish or dark green mineral, consisting essentially of magnesia (magnesium oxide), occurring in granular forms or in isometric crystals. Origin: Pref. Peri- + Gr. To break. Source: Websters Dictionary (01 Mar 1998) |
| periclaustral lamina | A thin lamina of white substance separating the claustrum from the putamen. It joins the internal capsule at either extremity of the putamen, forming a capsule of white matter external to the lenticular nucleus. Synonym: capsula externa, periclaustral lamina. (05 Mar 2000) |
| periclinium | Origin: NL, fr. Gr. Around + a bed. <botany> The involucre which surrounds the common receptacle in composite flowers. Source: Websters Dictionary (01 Mar 1998) |
| pericolic | Surrounding or encircling the colon. (05 Mar 2000) |
| pericolic membrane syndrome | <syndrome> A symptom complex simulating chronic appendicitis, caused by congenital constricting pericolic membranes. (05 Mar 2000) |
| pericolitis | Inflammation of the connective tissue or peritoneum surrounding the colon. Synonym: pericolonitis, serocolitis. Pericolitis dextra, pericolitis involving the ascending colon. (05 Mar 2000) |
| pericolitis sinistra | Inflammation of the connective tissues surrounding the sigmoid flexure, giving rise to symptoms, referable to the left iliac fossa, similar to those of perityphlitis in the right iliac fossa. Synonym: pericolitis sinistra. (05 Mar 2000) |
| pericolonitis | Inflammation of the connective tissue or peritoneum surrounding the colon. Synonym: pericolonitis, serocolitis. Pericolitis dextra, pericolitis involving the ascending colon. (05 Mar 2000) |
| pericolpitis | Synonym: perivaginitis. Origin: peri-+ G. Kolpos, bosom (vagina), + -itis, inflammation (05 Mar 2000) |
| periconchal | Surrounding the concha of the auricle. Synonym: periauricular. (05 Mar 2000) |
| periconchal sulcus | The depression on the medial surface of the auricle that corresponds to the anthelix. Synonym: fossa anthelicis, periconchal sulcus. (05 Mar 2000) |
| pericope | A selection or extract from a book; especially, a selection from the Bible, appointed to be read in the churches or used as a text for a sermon. Origin: L, section of a book, Gr.; around + to cut. Source: Websters Dictionary (01 Mar 1998) |
| pericorneal | Surrounding the cornea. Synonym: circumcorneal, perikeratic. (05 Mar 2000) |