zero

zero definition - medical

ze·ro (zîrˈō)

noun pl. ze·ros or ze·roes
  1. The numerical symbol 0, indicating the absence of quantity or mass.
  2. The temperature indicated by the numeral 0 on a thermometer.
verb
To adjust an instrument or device to zero value.

The American Heritage® Medical Dictionary Copyright © 2009 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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