| PSR | pain sensitivity range; perspective surface rendering; portal systemic resistance; proliferative sic... |
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| PVR | peripheral vascular resistance; perspective volume rendering; poliovirus receptor; postvoiding resid... |
| SDU | standard deviation unit; step-down unit |
| STEP | Sequential Test of Educational Programs |
| SDH | Step-down heating |
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| perspective | 1. A glass through which objects are viewed. "Not a perspective, but a mirror." 2. That which is seen through an opening; a view; a vista. "The perspective of life." 3. The effect of distance upon the appearance of objects, by means of which the eye recognised them as being at a more or less measurable distance. Hence, aerial perspective, the assumed greater vagueness or uncertainty of outline in distant objects. "Aerial perspective is the expression of space by any means whatsoever, sharpness of edge, vividness of colour, etc." (Ruskin) 4. The art and the science of so delineating objects that they shall seem to grow smaller as they recede from the eye. Synonym: linear perspective. 5. A drawing in linear perspective. Isometrical perspective, an inaccurate term for a mechanical way of representing objects in the direction of the diagonal of a cube. Perspective glass, a telescope which shows objects in the right position. Origin: F. Perspective, fr. Perspectif: cf. It. Perspettiva. See Perspective. 1. Of or pertaining to the science of vision; optical. 2. Pertaining to the art, or in accordance with the laws, of perspective. Perspective plane, the plane or surface on which the objects are delineated, or the picture drawn; the plane of projection; distinguished from the ground plane, which is that on which the objects are represented as standing. When this plane is oblique to the principal face of the object, the perspective is called oblique perspective; when parallel to that face, parallel perspective. <zoology> Perspective shell, any shell of the genus Solarium and allied genera. See Solarium. Origin: L. Perspicere, perspectum, to look through; per + spicere, specere, to look: cf. F. Perspectif; or from E. Perspective, n. See Spy. Source: Websters Dictionary (01 Mar 1998) |
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| Haworth perspective formula | <biochemistry> Of cyclic sugars, perspective representations of furanose or pyranose structures as pentagons or hexagons, respectively, with the connecting bonds so shaded as to make them appear as though the plane of the ring is at an angle of 30 |
| bimolecular step | <chemistry> Two species are reacting and form the transition state (09 Jan 1998) |
| rate-limiting step | <biochemistry> The slowest step in a metabolic pathway, or the step in an enzymatic reaction that requires the greatest amount of energy to initiate. (17 Dec 1997) |
| Master's two-step exercise test | An early and long-used exercise challenge to identify ischemic heart disease using a pair of nine inch steps with a platform on top, the number of trips by the patient arbitrarily chosen and related to age and body weight. See: two-step exercise test. Synonym: Master's two-step exercise test. (05 Mar 2000) |
| Gomori's one-step trichrome stain | <technique> A connective tissue stain that uses haematoxylin and a dye mixture containing chromotrope 2R and light green or aniline blue; muscle fibres appear red, collagen is green (or blue if aniline blue is used), and nuclei are blue to black. (05 Mar 2000) |
| Ronne's nasal step | A nasal visual field defect with one margin corresponding to the retinal horizontal medium; seen in glaucoma. (05 Mar 2000) |
| step | 1. In dentistry, a dove-tailed or similarly shaped projection of a cavity prepared in a tooth into a surface perpendicular to the main part of the cavity for the purpose of preventing displacement of the restoration (filling) by the force of mastication. 2. A change in direction resembling a stair-step in a line, a surface, or the construction of a solid body. 3. To move the foot in walking; to advance or recede by raising and moving one of the feet to another resting place, or by moving both feet in succession. 4. A prefix used before father, mother, brother, sister, son, daughter, child, etc, to indicate that the person thus spoken of is not a blood relative, but is a relative by the marriage of a parent; as, a stepmother to X is the wife of the father of X, married by him after the death of the mother of X. See Stepchild, Stepdaughter, Stepson, etc. (11 Feb 2000) |
| one-step procedure | A procedure in which a surgical biopsy is performed under general anesthesia and if cancer is found, a mastectomy or lumpectomy is done immediately as part of the same operation. (09 Oct 1997) |
| elementary step | <chemistry> Reaction mechanisms are broken down into elementary steps. For each step the the reactants are directly involved in forming the transition state. Therefore a rate law can be written from an elementary step but not from an overall reaction. (09 Jan 1998) |
| two-step exercise test | A test used mainly for coronary insufficiency; significant depression of RS-T in the electrocardiogram is considered abnormal and suggests coronary insufficiency. (05 Mar 2000) |
| two-step procedure | <surgery> When surgical biopsy and breast surgery are performed in two separate surgeries. (09 Oct 1997) |
| unimolecular step | <chemistry> A reaction involving one species (09 Jan 1998) |
| lock step | A mode of marching by a body of men going one after another as closely as possible, in which the leg of each moves at the same time with the corresponding leg of the person before him. Source: Websters Dictionary (01 Mar 1998) |
제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
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제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
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