Author: Glossary
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Molal
One mole of solute per kilogram of solvent.
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Moisture vapor transmission rate
The rate at which a barrier permits moisture to penetrate or escape. In pharmaceutical packaging the moisture vapor transmission rate is one element that determines the shelf life and expiration of a medication.
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Mohs chemosurgery technique
A method of excising tumors of the skin. The tumor tissue is fixed in place and a layer is removed. That portion is then examined microscopically. This procedure is repeated until the entire tumor is removed. Use of this technique ensures complete removal. It is esp. useful in treating basal cell epitheliomas.
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Moebius’ sign
A symptom of Graves’ disease in which one eye converges and the other diverges when one looks at the tip of one’s nose.
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Modulus
In physics, a constant or coefficient that indicates to what extent a substance possesses some property.
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Modulation
The alteration in function or status of something in response to a stimulus or altered chemical or physical environment.
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Biological response modifier
A n agent that intensifies normal immune responses. Examples include interferon, interleukin-2, and monoclonal antibodies.
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Modified Ottawa ankle rules
A 1998 modification of the 1992 Ottawa ankle rules that extended the palpation zone from the lateral malleolus to the midportion of the malleolus. This change significantly increased the specificity of the examination for ankle fracture.
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Posttranslational modification
The alteration of a protein, e.g., by phosphorylation or by the addition of carbohydrates to its structure. This process changes both the structure of proteins and their functions in biochemical reactions.
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Moderation
The limited use of a substance; the avoidance of excessive or hazardous exposure to a potentially harmful agent.