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}]
TM 1. {Turing Machine}. 2. A formal {database specification language}. [{Jargon File}]
tm <networking> The {country code} for Turkmenistan. Heavily used for {vanity domains} because it looks like the abbreviation for "trademark". (1999-01-27)
TM TeleMail (BBS, Berlin, Germany, telecommunication)
TM Tools for MIME (EMACS, GNU, MIME)