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| | The International System (Metric) |
 | | The International System of Units is a modernized version of the metric system, established by international agreement, that provides a logical and interconnected framework for all measurements in science, industry, and commerce. |
 | | The second is defined as the duration of 9,192,631,770 cycles of the radiation associated with a specified transition of the cesium-133 atom. |
 | | Ambiguities in powder indexing: conjunction of a ternary and binary lattice metric singularity in the cubic system. |
| www.infoplease.com /ipa/A0001658.html (588 words) |
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