Fluorine and Halogen

Fluorine noun - 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.

Halogen and fluorine are semantically related. In some cases you can use "Halogen" instead a noun "Fluorine".

Halogen noun - Any of five related nonmetallic elements (fluorine or chlorine or bromine or iodine or astatine) that are all monovalent and readily form negative ions.

Fluorine and halogen are semantically related. Sometimes you can replace term "Fluorine" with "Halogen", this nouns are similar.

Nearby Word: halo