Fluorine-18

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    An artificial radioisotope of fluorine, ¹⁸₉F, having 9 protons and 9 neutrons, that is an important industrial source of positrons uncountable

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