tat


1tat

verb \ˈtat\
tat·tedtat·ting

Definition of TAT

intransitive verb
:  to work at tatting
transitive verb
:  to make by tatting

Origin of TAT

back-formation from tatting
First Known Use: 1858

Other Handicraft Terms

biscuit, darn, tambour, wrought

2tat

noun \ˈtat\

Definition of TAT

:  a small protein produced by a lentivirus (as HIV) that greatly increases the rate of viral transcription and replication and enhances the susceptibility of T cells to infection; also :  the viral gene that codes for the tat protein

Origin of TAT

trans-activating transcriptional regulation
First Known Use: 1985

Other Biochemistry Terms

bile, biodegradable, capsaicin, keratin, metabolism

3tat

noun \ˈtat\

Definition of TAT

:  tattoo
tat verb

Origin of TAT

by shortening
First Known Use: 1987

TAT

abbreviation

Definition of TAT

thematic apperception test

Other Psychology Terms

fetish, hypochondria, intelligence, mania, narcissism, neurosis, pathological, psychosis, schadenfreude, subliminal

tat

noun , often capitalized \ˈtat\   (Medical Dictionary)

Medical Definition of TAT

1
: a small protein produced by a lentivirus (as HIV) within infected cells that greatly increases the rate of viral transcription and replication and that is also secreted extracellularly where it plays a role in increasing viral replication in newly infected cells and in enhancing the susceptibility of T cells to infection—called also tat protein
2
: the viral gene that codes for the tat protein

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