noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   The radioactive isotope of gold, ¹⁹⁸₇₉Au, used in medical irradiation and in diagnosis uncountable

Synonyms

All synonyms

gold 198gold-198

Etymology

From radio- + gold.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.