| SVD | single vessel disease; singular value decomposition; small vessel disease; spontaneous vaginal deliv... |
|---|---|
| VE | vaginal examination; Venezuelan encephalitis; venous emptying; venous extension; ventilation; ventil... |
| VP | physiological volume; vapor pressure; variegate porphyria; vascular permeability; vasopressin; velop... |
| VTX, vtx | vertex |
| VVD | vaginal vertex delivery |
| BCE | Bovine corneal endothelial |
|---|---|
| CT | Corneal thickness |
| HCEC | Human corneal endothelial cells |
| HCE | Human corneal epithelial |
| ICRS | Intrastromal Corneal Ring Segments |
| vertex | 1. <anatomy> A turning point; the principal or highest point; top; summit; crown; apex. Specifically: the top, or crown, of the head. 2. <astronomy> The zenith, or the point of the heavens directly overhead. 3. <mathematics> The point in any figure opposite to, and farthest from, the base; the terminating point of some particular line or lines in a figure or a curve; the top, or the point opposite the base. Vertex of a curve, the point in which the axis pierces the surface. The principal vertex of a conic section is, in the parabola, the vertex of the axis of the curve: in the ellipse, either extremity of either axis, but usually the left-hand vertex of the transverse axis; in the hyperbola, either vertex, but usually the right-hand vertex of the transverse axis. Origin: L. Vertex, -icis, a whirl, top of the head, top, summit, from vertere to turn. See Verse, and cf. Vortex. (29 Oct 1998) |
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| vertex cordis | The blunt extremity of the heart formed by the left ventricle. See: apex beat. Synonym: apex cordis, vertex cordis. (05 Mar 2000) |
| vertex corneae | The central part of the cornea, slightly thinner than the peripheral part. Synonym: vertex corneae. (05 Mar 2000) |
| vertex of cornea | The central part of the cornea, slightly thinner than the peripheral part. Synonym: vertex corneae. (05 Mar 2000) |
| vertex presentation | See: cephalic presentation. (05 Mar 2000) |
| presentation, vertex | In a vertex presentation, the top of the baby's head comes first at delivery. The vertex here refers specifically to the top of the head the word vertex in latin means a whirlpool, whirlwind, top of the mountain, or the top of the head. Why top of the head ? because the hairs on the top of the head often form a whorl, a whirl-like pattern. (12 Dec 1998) |
| submental vertex projection | Radiographic projection devised to obtain direct visualization of the base of the skull. Synonym: axial view, base projection, submental vertex projection, submentovertical projection, verticosubmental view. (05 Mar 2000) |
| submental vertex radiograph | A radiographic projection showing the base of the skull, positions of the mandibular condyles, and zygomatic arches. Synonym: base view, submental vertex radiograph. (05 Mar 2000) |
| delivery, vertex | In a vertex delivery, the top of the baby's head comes first. The vertex here refers to the top of the head The word vertex in Latin means a whirlpool, whirlwind, top of the mountain, or the top of the head. Why top of the head ? Because the hairs on the top of the head often form a whorl, a whirl-like pattern. (12 Dec 1998) |
| marginal corneal degeneration | Bilateral opacification and vascularization of the periphery of the cornea, progressing to formation of a gutter and ectasia. Synonym: ectatic marginal degeneration of cornea. (05 Mar 2000) |
| recurrent corneal erosion | Repeated vesiculation followed by exfoliation of the corneal epithelium. (05 Mar 2000) |
| Groenouw's corneal dystrophy | A granular type of corneal dystrophy, with autosomal dominant inheritance, a macular type of corneal dystrophy, with autosomal recessive inheritance. (05 Mar 2000) |
| ring-like corneal dystrophy | Thread-like opacities of the anterior corneal stroma, with acute, painful onset followed by decreased vision; autosomal dominant inheritance. (05 Mar 2000) |
| corneal | The cornea is an outwardly convex transparent membrane forming part of the anterior (front) portion of the eye. It is situated directly in front of the pupil an merges back to the sclera (white of the eye) and the outer margin of the iris. (27 Sep 1997) |
| corneal astigmatism | Astigmatism due to a defect in the curvature of the corneal surface. (05 Mar 2000) |
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