n. (also t) (pl. Ts or T's)
1 the twentieth letter of the alphabet.
2 a T-shaped thing (esp. attrib.: T-joint).
Phrases and idioms:
to a T exactly; to a nicety.
2.
abbr.
1 tera-.
2 tesla.
3.
symb. Chem. the isotope tritium.
Useful english dictionary. 2012.