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tare 1

1. Any of several vetches native to Europe.
2. Any of several weedy plants that grow in grain fields.
3. tares An unwelcome or objectionable element.

[Middle English.]

tare 2

1. The weight of a container or wrapper that is deducted from the gross weight to obtain net weight.
2. A deduction from gross weight made to allow for the weight of a container.
3. Chemistry A counterbalance, especially an empty vessel used to counterbalance the weight of a similar container.
tr.v. tared, tar·ing, tares
To determine or indicate the tare of, especially to weigh in order to find out the tare.

[Middle English, from Old French, ultimately from Arabic ṭarḥ, rejection, subtraction, from ṭaraḥa, to throw away; see ṭrḥ in Semitic roots.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.