tat 1  (t ăt)
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intr. & tr.v. tat·ted, tat·ting, tats To do tatting or produce (something) by tatting.
[Probably back-formation from TATTING.] |
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2020 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
tat 2 also TAT  (t ăt)
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n.1. A gene in the AIDS virus that stimulates the host cell to replicate genetic components of the virus. 2. The protein encoded by this gene that is a potent transactivator of viral replication.
[t(rans)a(c)t(ivator) (gene).] |
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2020 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
tat 3 or tatt  (t ăt) Informal
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n. A mark or design made on the skin; a tattoo. tr.v. tat·ted, tat·ting, tats or tat·ted or tat·ting or tatts To tattoo. |
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2020 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
Indo-European Roots
Semitic Roots
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.
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