noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   The vitamin biotin labelled with radioactive (yttrium-90), used in the treatment of cancer, where it seeks out tumor cells that have been targeted by an antibody linked to streptavidin and kills them. uncountable

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