| punch | To perforate or stamp with an instrument by pressure, or a blow; as, to punch a hole; to punch ticket. Punching machine, or Punching press, a machine tool for punching holes in metal or other material; called also punch press. Origin: From Punch, a tool; cf. F. Poinconner. A beverage composed of wine or distilled liquor, water (or milk), sugar, and the juice of lemon, with spice or mint; specifically named from the kind of spirit used; as rum punch, claret punch, champagne punch, etc. Milk punch, a sort of punch made with spirit, milk, sugar, spice, etc. Punch bowl, a large bowl in which punch is made, or from which it is served. Roman punch, a punch frozen and served as an ice. Origin: Hind. Panch five, Skr. Pacan. So called because composed of five ingredients, viz, sugar, arrack, spice, water, and lemon juice. See Five. Source: Websters Dictionary (01 Mar 1998) |
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| punch biopsy | A punch is an instrument for cutting and removing a disk of tissue. A punch biopsy of the skin may for example be done to make the diagnosis of a malignancy. (12 Dec 1998) |
| punch card | A card on which data are stored by means of holes made in specified positions so that data can be sorted, processed, and analyzed. (05 Mar 2000) |
| punch grafts | Small full-thickness graft's of the scalp, removed with a circular punch and transplanted to a bald area to grow hair. (05 Mar 2000) |
| scleral | Relating to the sclera. Synonym: sclerotic. (05 Mar 2000) |
| scleral buckling | An operation for retinal detachment which reduces the size of the globe by indenting the sclera so that it approximates the retina. (12 Dec 1998) |
| scleral buckling operation | An operation performed in retinal detachment to indent the sclerochoroidal wall. (05 Mar 2000) |
| scleral diseases | General disorders of the sclera or white of the eye. They may include anatomic, embryologic, degenerative, or pigmentation defects. (12 Dec 1998) |
| scleral ectasia | Localised bulging of the sclera. Synonym: scleral ectasia. Origin: scler-+ G. Ektasis, an extension (05 Mar 2000) |
| scleral resection | Shortening of the outer coat of the eye in retinal separation. (05 Mar 2000) |
| scleral rigidity | The resistance of the eye to changes in shape with changes in intraocular pressure. (05 Mar 2000) |
| scleral ring | The appearance of the sclera adjacent to the optic disk when the retinal pigment epithelium does not extend to the optic nerve. (05 Mar 2000) |
| scleral roll | A ridge of the sclera at the internal scleral sulcus from which ciliary muscle fibres take origin. Synonym: scleral roll. Vascular spur, partial septum between vessels (arteries and veins) at the level of fusion or branching at acute angle. See: calcar. (05 Mar 2000) |
| scleral spur | A ridge of the sclera at the internal scleral sulcus from which ciliary muscle fibres take origin. Synonym: scleral roll. Vascular spur, partial septum between vessels (arteries and veins) at the level of fusion or branching at acute angle. See: calcar. (05 Mar 2000) |
| scleral staphyloma | A staphyloma occurring in the area of exit of the vortex veins. Synonym: scleral staphyloma. (05 Mar 2000) |