a crystalline metallic element not found in nature; occurs
as one of the fission products of uranium Synonym(s):technetium, Tc, atomic number 43
a permanent council of the United Nations that commissions a country (or countries) to undertake the administration of a territory Synonym(s):Trusteeship Council, TC
From The Free On-line Dictionary of Computing (15Feb98) [foldoc]:
tc
The {country code} for the Turks and Caicos
Islands.