| slipper | 1. One who, or that which, slips. 2. A kind of light shoe, which may be slipped on with ease, and worn in undress; a slipshoe. 3. A kind of apron or pinafore for children. 4. A kind of brake or shoe for a wagon wheel. 5. <machinery> A piece, usually a plate, applied to a sliding piece, to receive wear and afford a means of adjustment; also called shoe, and gib. <zoology> Slipper animalcule, a ciliated infusorian of the genus Paramecium. Slipper flower. <botany> A boat shell. Source: Websters Dictionary (01 Mar 1998) |
|---|---|
| slipperwort | <botany> See Calceolaria. Source: Websters Dictionary (01 Mar 1998) |
| slippery | 1. Having the quality opposite to adhesiveness; allowing or causing anything to slip or move smoothly, rapidly, and easily upon the surface; smooth; glib; as, oily substances render things slippery. 2. Not affording firm ground for confidence; as, a slippery promise. "The slippery tops of human state." (Cowley) 3. Not easily held; liable or apt to slip away. "The slippery god will try to loose his hold." (Dryden) 4. Liable to slip; not standing firm. 5. Unstable; changeable; mutable; uncertain; inconstant; fickle. "The slippery state of kings." 6. Uncertain in effect. 7. Wanton; unchaste; loose in morals. Slippery elm. <botany> An American tree (Ulmus fulva) with a mucilagenous and slightly aromatic inner bark which is sometimes used medicinally; also, the inner bark itself. A malvaceous shrub (Fremontia Californica); so called on the Pacific coast. See: Slipper. Source: Websters Dictionary (01 Mar 1998) |
| slipping patella | Spontaneous or easily provoked dislocation of the patella. (05 Mar 2000) |
| slipping rib | Subluxation of a rib cartilage, with costochondral separation. (05 Mar 2000) |
| slipping rib cartilage | Subluxation of rib cartilage, at the costo-chondral junction, causing pain and audible click. (05 Mar 2000) |
| slit | <microscopy> A narrow aperture, usually rectangular in shape. (05 Aug 1998) |
| slit lamp | In ophthalmology, an instrument consisting of a combination of a microscope and a narrow beam of collimated light that can be narrowed into a slit and used to examine the eye. Synonym: biomicroscope, Gullstrand's slitlamp. (05 Mar 2000) Previous: slippery, slipping patella, slipping rib, slipping rib cartilage, slitNext: slit lamp, slit microscope, slit pores, slit-shellslit lamp <apparatus, ophthalmology> A special type of examination of the anterior structures of the eye. These include the conjunctiva, sclera, lids, iris, cornea and anterior chamber. The slit lamp is a device which focuses a high intensity light beam (that can be focused as a slit) at the structures of the eye while the examiner looks through a magnifying scope. Eyedrops which numb the eyes and dilate the pupils will often be used prior to examination. The exam is not at all uncomfortable, just time consuming. Diagnoses such as foreign body (to conjunctiva, cornea or sclera), iritis, herpes keratoconjunctivitis, cornmeal ulcer, cataracts, glaucoma and corneal abrasions may be made using this exam. Some foreign bodies can even be removed using the enhanced image amplification of the slit lamp. (19 Jan 1998) |
| slit microscope | <instrument, microscopy> A term applied to particles less than 0.1 ~m in diameter, hence too small to be truly resolved by the light micro- scope. Under the ultramicroscope they look like stars in the sky. Their differences in size are merely indicated by differences in brightness. (05 Aug 1998) |
| slit pores | The intercellular clefts between the interdigitating pedicels of podocytes; they are part of the filtration barrier of renal corpuscles. Synonym: filtration slits. (05 Mar 2000) |
| slit ventricle syndrome | <syndrome> In shunt dependent patients, a state characterised by intermittent or chronic headaches, small ventricles, and slow reflux of the valve mechanism. (05 Mar 2000) |
| slit-shell | <zoology> Any species of Pleurotomaria, a genus of beautiful, pearly, spiral gastropod shells having a deep slit in the outer lip. Many fossil species are known, and a few living ones are found in deep water in tropical seas. Source: Websters Dictionary (01 Mar 1998) |
| slitlamp | In ophthalmology, an instrument consisting of a combination of a microscope and a narrow beam of collimated light that can be narrowed into a slit and used to examine the eye. Synonym: biomicroscope, Gullstrand's slitlamp. (05 Mar 2000) Previous: slippery, slipping patella, slipping rib, slipping rib cartilage, slitNext: slit lamp, slit microscope, slit pores, slit-shellslit lamp <apparatus, ophthalmology> A special type of examination of the anterior structures of the eye. These include the conjunctiva, sclera, lids, iris, cornea and anterior chamber. The slit lamp is a device which focuses a high intensity light beam (that can be focused as a slit) at the structures of the eye while the examiner looks through a magnifying scope. Eyedrops which numb the eyes and dilate the pupils will often be used prior to examination. The exam is not at all uncomfortable, just time consuming. Diagnoses such as foreign body (to conjunctiva, cornea or sclera), iritis, herpes keratoconjunctivitis, cornmeal ulcer, cataracts, glaucoma and corneal abrasions may be made using this exam. Some foreign bodies can even be removed using the enhanced image amplification of the slit lamp. (19 Jan 1998) |
| sliver | 1. A long piece cut ot rent off; a sharp, slender fragment; a splinter. 2. A strand, or slender roll, of cotton or other fibre in a loose, untwisted state, produced by a carding machine and ready for the roving or slubbing which preceeds spinning. 3. Bait made of pieces of small fish. Cf. Kibblings. To cut or divide into long, thin pieces, or into very small pieces; to cut or rend lengthwise; to slit; as, to sliver wood. "They 'll sliver thee like a turnip." (Sir W. Scott) Origin: See Slive. Source: Websters Dictionary (01 Mar 1998) |