フッ素 です
fussodesu
1. Fluorine.; It is.
Noun
#199772
1. Fluorine.; It is.
1. fluorine (F)
1. fluororesin; fluoropolymer
1. fluorochemical surfactant; fluorine-based surfactant
1. organic fluoride
1. If fluorine; When fluorine
1. It was not fluorine.
1. If fluorine; When fluorine
1. If fluorine; When fluorine
1. Wasn't fluorine.; Wasn't fluoride.