1. [ noun ] (chemistry) a crystalline metallic element not found in nature; occurs as one of the fission products of uranium
Synonyms: atomic_number_43 technetium
Related terms: metallic_element
2. [ noun ] (government) a permanent council of the United Nations that commissions a country (or countries) to undertake the administration of a territory
Synonyms: Trusteeship_Council
Related terms: council United_Nations
Similar spelling:   tce