WordNet (r) 3.0 (2006):

Tm
    n 1: a soft silvery metallic element of the rare earth group;
         isotope 170 emits X-rays and is used in small portable
         X-ray machines; it occurs in monazite and apatite and
         xenotime [syn: thulium, Tm, atomic number 69]

The Free On-line Dictionary of Computing (19 January 2023):

TM

   1. Turing Machine.

   2. A formal database specification language.

   [Jargon File]


The Free On-line Dictionary of Computing (19 January 2023):

tm

    The country code for Turkmenistan.

   Heavily used for vanity domains because it looks
   like the abbreviation for "trademark".

   (1999-01-27)