| stereoroentgenography | Preparation of a pair of radiographs with appropriate shift of the X-ray tube or film so that the images can be viewed stereoscopically to give a three-dimensional appearance. Synonym: stereography, stereoroentgenography. (05 Mar 2000) |
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| stereoscope | <instrument> An optical instrument for giving to pictures the appearance of solid forms, as seen in nature. It combines in one, through a bending of the rays of light, two pictures, taken for the purpose from points of view a little way apart. It is furnished with two eyeglasses, and by refraction or reflection the pictures are superimposed, so as to appear as one to the observer. In the reflecting stereoscope, the rays from the two pictures are turned into the proper direction for stereoscopic vision by two plane mirrors set at an angle with each other, and between the pictures. In the lenticular stereoscope, the form in general use, the eyeglasses are semilenses, or marginal portions of the same convex lenses, set with their edges toward each other, so that they deflect the rays coming from the picture so as to strike the eyes as if coming direct from an intermediate point, where the two pictures are seen apparently as one. Origin: Stereo + -scope. Source: Websters Dictionary (01 Mar 1998) |
| stereoscopic | Relating to a stereoscope, or giving the appearance of three dimensions. (05 Mar 2000) |
| stereoscopic acuity | The detection of differences in distance by superimposition of slightly different retinal images into a single image to the brain. (05 Mar 2000) |
| stereoscopic microscope | <instrument> A microscope having double eyepieces and objectives and thus independent light paths, giving a three-dimensional image. (05 Mar 2000) |
| stereoscopic parallax | The difference in the angles formed by the lines of sight to two objects situated at different distances from the eyes; a factor in the visual perception of depth. Synonym: stereoscopic parallax. (05 Mar 2000) |
| stereoscopic vision | The single perception of a slightly different image from each eye. Synonym: stereopsis. (05 Mar 2000) |
| stereoscopical | Of or pertaining to the stereoscope; characteristic of, or adapted to, the stereoscope; as, a stereoscopic effect; the stereoscopic function of the eyeglasses; stereoscopic views. Stereoscop"ically. Source: Websters Dictionary (01 Mar 1998) |
| stereoscopy | The art or science of using the stereoscope, or of constructing the instrument or the views used with it. Source: Websters Dictionary (01 Mar 1998) |
| stereoselective | As applied to a reaction, denoting a process in which of two or more possible stereoisomeric products only one predominates; a stereoselective process is not necessarily stereospecific. (05 Mar 2000) |
| stereospecific | As applied to a reaction, denoting a process in which stereoisomerically different starting materials give rise to stereoisomerically different products; a stereospecific process is thus necessarily stereoselective, but not all stereoselective processes are stereospecific. (05 Mar 2000) |
| stereotactic | Precise positioning in three dimensional space. Refers to surgery or radiation therapy directed by various scanning devices. (16 Dec 1997) |
| stereotactic cordotomy | See: cordotomy. (05 Mar 2000) |
| stereotactic instrument | Stereotaxic instrument, an apparatus attached to the head, used to localise precisely an area in the brain by means of coordinates related to intracerebral structures. (05 Mar 2000) |
| stereotactic needle biopsy | Biopsy done while breast is compressed under mammography. A series of pictures locate the lesion, and a radiologist enters information into a computer. The computer calculates information and positions a needle to remove the finding. A needle is inserted into the lump, and a piece of tissue is removed and sent to the lab for analysis. May be referred to as mammotest or core biopsy. (09 Oct 1997) |
| stereotactic radiosurgery |
A radiation therapy technique for brain tumors that uses a rigid head frame that is attached to the skull. The frame is used to help aim high-dose radiation beams directly at the tumors and not at normal brain tissue. This procedure does not involve surgery. Also called stereotactic external-beam radiation, stereotactic radiation therapy, and stereotaxic radiosurgery.
출처: www.stjude.org/glossary
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| stereotaxis |
Use of a computer and scanning devices to create three-dimensional pictures. This method can be used to direct a biopsy, external radiation, or the insertion of radiation implants.
출처: www.stjude.org/glossary
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| stereotactic biopsy |
A biopsy procedure that uses a computer and a three-dimensional scanning device to find a tumor site and guide the removal of tissue for examination under a microscope.
출처: www.stjude.org/glossary
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| stereoscopic |
Three-dimensional vision; depth perception.
출처: highered.mcgraw-hill.com/sites/0072549238/student_...
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| stereochemistry |
Started from the chemistry which studies the three-dimensional arrangement of atoms in molecules.
출처: library.thinkquest.org/26644/us/Lexique.htm
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