| ZPA | zone of polarizing activity |
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| ZPA | Zone of Polarizing Activity |
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| polarizing element | <microscopy> A general term for a device for producing or analysing plane-polarized light. It may be a Nicol prism, some other form of calcite prism, a reflecting surface, or a polarizing filter. (05 Aug 1998) |
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| polarizing power | <chemistry> Means that a charged species such as a proton can attract negatively charged electrons which causes a shift in the orbital. The higher the positive charge and the smaller the smaller the size, the greater the polarizing power of the species. (09 Jan 1998) |
| zone of polarizing activity | <cell biology> The small group of mesenchyme cells in avian limb buds that is located at the posterior margin of the developing bud and that produces a substance, possibly retinoic acid, that provides positional information to the developing limb bud. (18 Nov 1997) |
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| polarizing m. |
one equipped with a polarizer, analyzer, and means for measurement of the alteration of the polarized light by the specimen.
Ãâó: www.mercksource.com/pp/us/cns/cns_health_library.j...
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| polarizing m., rectified |
a polarizing microscope corrected for depolarization from curved lens surfaces so that full apertures can be used.
Ãâó: www.mercksource.com/pp/us/cns/cns_health_library.j...
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| polarizing microscope |
employs polarizing light to show changes in internal structure and composition of material not discernible with ordinary light. Used extensively in industry for product control. See polarized light.
Ãâó: www.opti-tech.ca/pages/glossary.html
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