tc

Noun tc has 2 senses

• tc(n = noun.substance) atomic number 43, technetium - a crystalline metallic element not found in nature; occurs as one of the fission products of uranium;
is a kind of metal, metallic element

• tc(n = noun.group) trusteeship council - a permanent council of the United Nations that commissions a country (or countries) to undertake the administration of a territory;
is a member of un, united nations
is a kind of council