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Definition of T:

  1. the twentieth letter of the English alphabet, is a nonvocal consonant. With the letter h it forms the digraph th, which has two distinct sounds, as in thin, then. See Guide to Pronunciation, 262- 264, and also 153, 156, 169, 172, 176, 178- 180.


thyroxine, ABC's, liothyronine, d, e, aitch, thyroxin, a, g, metric ton, tonne, b, f, tetraiodothyronine, c, h, MT, deoxythymidine monophosphate, triiodothyronine.