Tm

Symbol, Chemistry.
1.
thulium.
1.
trademark.
2.
transcendental meditation.
1.
true mean.
abbreviation
1.
Turkmenistan
Chemical symbol
1.
thulium
abbreviation
1.
transcendental meditation
2.
Turkmenistan (international car registration)

tm abbr.
temperature midpoint (on the Celsius scale)

Tm 1

The symbol for the element thulium.

Tm 2
abbr.

transport maximum

tubular maximum

Tm
The symbol for thulium.
thulium
(th’lē-əm)
Symbol Tm
A soft, silver-gray metallic element of the lanthanide series. One of its artificial radioactive isotopes is used as a radiation source in small, portable x-ray machines. Atomic number 69; atomic weight 168.934; melting point 1,545°C; boiling point 1,727°C; specific gravity 9.3; valence 2, 3. See Periodic Table.

1. Turing Machine.
2. A formal database specification language.
[Jargon File]
networking
The country code for Turkmenistan.
Heavily used for vanity domains because it looks like the abbreviation for “trademark”.
(1999-01-27)
Tm
1.
thulium
2.
Timothy
TM
1.
telemetry
2.
them (shortwave transmission)
3.
trademark
4.
transcendental meditation
5.
true mean
6.
Turkmenistan (international vehicle ID)
7.
tympanic membrane
T.M.
Tax Magazine