Ttfn

abbreviation
1.
ta-ta for now

chat
ta-ta for now – goodbye for now. Used in the UK, USA and probably elsewhere.
(1998-07-02)
TTFN
ta ta for now

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Tth
TTH Tuesday/Thursday
Tthms
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Ttl
abbreviation 1. transistor transistor logic: a method of constructing electronic logic circuits 2. through-the-lens: denoting a system of light metering in cameras 1. transistor-transistor logic. 2. Time to Live. TTL transistor-transistor logic

TTL meter
noun, Photography. 1. through-the-lens meter. through-the-lens meter [throo-th uh-lenz] /ˈθru ðəˈlɛnz/ noun, Photography. 1. a light meter employing a sensor cell located behind the taking lens.
Tto
TTO transtracheal oxygen