ptb

/T B/
noun
  1. 1

    (linguistics) Proto-Tibeto-Burman

  2. 2

    (plural only) Initialism of powers that be. [(idiomatic) The holders of power or the authorities in a given situation, especially if seen as being faceless or unreasonably bureaucratic.]

  3. 3

    (medicine) Initialism of preterm birth.

  4. 4

    (pathology) Initialism of pulmonary tuberculosis. [(pathology) The most common form of active tuberculosis (TB) infecting the lungs, generally caused by Mycobacterium tuberculosis.]

  5. 5

    (software) Initialism of public test build, public test branch.

  6. 6

    (biochemistry) Initialism of polypyrimidine tract-binding protein.

  7. 7

    (networking) Initialism of packet too big, an IPv6 error message.