Fluorine

//ˈflʊ(ə)ɹˌin/ noun

Definitions

Noun
  1. 1
    The chemical element (symbol F) with an atomic number of 9. It is the lightest of the halogens, a pale yellow-green, highly reactive gas that attacks all metals. uncountable
  2. 2
    a nonmetallic univalent element belonging to the halogens; usually a yellow irritating toxic flammable gas; a powerful oxidizing agent; recovered from fluorite or cryolite or fluorapatite wordnet
  3. 3
    A single atom of this element. countable

    "an octahedron of fluorines"

Etymology

From Latin fluor (“flow”) + -ine. Coined by British chemist Humphry Davy in 1813.

Next best steps

Mini challenge

Unscramble this word: fluorine