| SD | Sandhoff disease; senile dementia; septal defect; serologically defined; serologically detectable; s... |
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| Draper's law | A chemical change is produced in a photochemical substance only by those light rays that are absorbed by that substance. (05 Mar 2000) |
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| Draper, John | <person> English chemist, 1811-1882. See: Draper's law. (05 Mar 2000) |
| Draper's l. |
only the rays that are absorbed by a photochemical substance will produce a chemical change in it.
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| Draper | a dealer in fabrics and sewing materials (and sometimes in clothing and drygoods) |
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| Draper | hanging cloth used as a blind |
| Draper | cloth gracefully draped and arranged in loose folds |
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