音标：[,bɔ:rә'fluәraid] ；

n. [化]氟硼酸盐, 氟硼酸酯

n. A double fluoride of boron and hydrogen, or some
other positive element, or radical; -- called also fluoboride, and
formerly fluoborate.

SSS 2010-12-29

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Beauty is only skin deep. And the beauty of shiny white teeth is even less deep. Because a new study shows that fluoride forms a thinner protective shiel

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