| EGS | electrogalvanic stimulation; electron gamma-shower; external guide sequence |
|---|---|
| GAFG | goal attainment follow-up guide |
| GDB | gas density balance; guide dogs for the blind |
| IGS | image-guided surgery; inappropriate gonadotropin secretion; internal guide sequence |
| REG | radiation exposure guide; radioencephalogram, radioencephalography |
| EGS | External Guide Sequence |
|---|---|
| gRNA | guide RNA |
| IGS | internal guide sequence |
shading
| shade | 1. To shelter or screen by intercepting the rays of light; to keep off illumination from. "I went to crop the sylvan scenes, And shade our altars with their leafy greens." (Dryden) 2. To shelter; to cover from injury; to protect; to screen; to hide; as, to shade one's eyes. "Ere in our own house I do shade my head." (Shak) 3. To obscure; to dim the brightness of. "Thou shad'st The full blaze of thy beams." (Milton) 4. To pain in obscure colours; to darken. 5. To mark with gradations of light or colour. 6. To present a shadow or image of; to shadow forth; to represent. "[The goddess] in her person cunningly did shade That part of Justice which is Equity." (Spenser) Origin: Shaded; Shading. 1. Comparative obscurity owing to interception or interruption of the rays of light; partial darkness caused by the intervention of something between the space contemplated and the source of light. Shade differs from shadow as it implies no particular form or definite limit; whereas a shadow represents in form the object which intercepts the light. When we speak of the shade of a tree, we have no reference to its form; but when we speak of measuring a pyramid or other object by its shadow, we have reference to its form and extent. 2. Darkness; obscurity; often in the plural. "The shades of night were falling fast." (Longfellow) 3. An obscure place; a spot not exposed to light; hence, a secluded retreat. "Let us seek out some desolate shade, and there Weep our sad bosoms empty." (Shak) 4. That which intercepts, or shelters from, light or the direct rays of the sun; hence, also, that which protects from heat or currents of air; a screen; protection; shelter; cover; as, a lamp shade. "The Lord is thy shade upon thy right hand." (Ps. Cxxi. 5) "Sleep under a fresh tree's shade." (Shak) "Let the arched knife well sharpened now assail the spreading shades of vegetables." (J. Philips) 5. Shadow. "Envy will merit, as its shade, pursue." (Pope) 6. The soul after its separation from the body; so called because the ancients it to be perceptible to the sight, though not to the touch; a spirit; a ghost; as, the shades of departed heroes. "Swift as thought the flitting shade Thro' air his momentary journey made." (Dryden) 7. The darker portion of a picture; a less illuminated part. See Def. 1, above. 8. Degree or variation of colour, as darker or lighter, stronger or paler; as, a delicate shade of pink. "White, red, yellow, blue, with their several degrees, or shades and mixtures, as green only in by the eyes." (Locke) 9. A minute difference or variation, as of thought, belief, expression, etc.; also, the quality or degree of anything which is distinguished from others similar by slight differences; as, the shades of meaning in synonyms. "New shades and combinations of thought." (De Quincey) "Every shade of religious and political opinion has its own headquarters." (Macaulay) The Shades, the Nether World; the supposed abode of souls after leaving the body. Origin: OE. Shade, shadewe, schadewe, AS. Sceadu, scead; akin to OS. Skado, D. Schaduw, OHG. Scato, (gen. Scatewes), G. Schatten, Goth. Skadus, Ir. & Gael. Sgath, and probably to Gr. Darkness. Cf. Shadow, Shed a hat. Source: Websters Dictionary (01 Mar 1998) |
|---|---|
| anterior guide | In dentistry, that part of an articulator on which the anterior guide pin rests to maintain the vertical dimension of occlusion and the incisal guide angle as established by the incisal guidance; may be adjustable, with a superior surface that may be changed to provide variations in the incisal guide angle, or customised, being individually formed in plastic to allow other than straight line incisal guidance in eccentric movements. Synonym: anterior guide. (05 Mar 2000) |
| mandibular guide prosthesis | A prosthesis with an extension designed to direct a resected mandible into a functional relation with the maxilla. (05 Mar 2000) |
| catheter guide | A flexible metallic wire or thin sound over which a catheter is passed to advance it into its proper position, as in a blood vessel or the urethra. See: stylet. (05 Mar 2000) |
| RNA, guide | Small kinetoplastid mitochondrial RNA that plays a major role in RNA editing. These molecules form perfect hybrids with edited mRNA sequences and possess nucleotide sequences at their 5'-ends that are complementary to the sequences of the mRNA's immediately downstream of the pre-edited regions. (12 Dec 1998) |
| guide | 1. A person who leads or directs another in his way or course, as in a strange land; one who exhibits points of interest to strangers; a conductor; also, that which guides; a guidebook. 2. One who, or that which, directs another in his conduct or course of lifo; a director; a regulator. "He will be our guide, even unto death." (Ps. Xlviii. 14) 3. Any contrivance, especially one having a directing edge, surface, or channel, for giving direction to the motion of anything, as water, an instrument, or part of a machine, or for directing the hand or eye, as of an operator; as: A blade or channel for directing the flow of water to the wheel buckets. <surgery> A strip or device to direct the compositor's eye to the line of copy he is setting. 4. A noncommissioned officer or soldier placed on the directiug flank of each subdivision of a column of troops, or at the end of a line, to mark the pivots, formations, marches, and alignments in tactics. Guide bar, an additional rail, between the others, gripped by horizontal driving wheels on the locomotive, as a means of propulsion on steep gradients. Origin: OE. Giae, F. Guide, It. Guida. Source: Websters Dictionary (01 Mar 1998) |
| guide plane | A fixed or removable device used to displace a single tooth, an arch segment, or an entire arch toward an improved relationship. (05 Mar 2000) |
| guide RNA | <molecular biology> Small RNA molecules that hybridise to specific mRNAs and direct their RNA editing. (18 Nov 1997) |
| mold guide | A guide used to specify the shape of artificial teeth, or of an artificial tooth. (05 Mar 2000) |
| condylar guide | The mechanical device on an articulator which is intended to produce guidance in articulator movement, similar to those produced by the paths of the condyles in the temporomandibular joints. See: condylar guidance inclination. Synonym: condylar guide. (05 Mar 2000) |
| incisal guide | In dentistry, that part of an articulator on which the anterior guide pin rests to maintain the vertical dimension of occlusion and the incisal guide angle as established by the incisal guidance; may be adjustable, with a superior surface that may be changed to provide variations in the incisal guide angle, or customised, being individually formed in plastic to allow other than straight line incisal guidance in eccentric movements. Synonym: anterior guide. (05 Mar 2000) |
| incisal guide angle | The angle formed with the horizontal plane by drawing a line in the sagittal plane between incisal edges of the maxillary and mandibular central incisors when the teeth are in centric occlusion. (05 Mar 2000) |
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