English word trifluoride comes from English tri-, English fluoride
| Dictionary entry | Language | Definition |
|---|---|---|
| tri- | English (eng) | (chemistry) Used in combination with a known element name (e.g. 'tri-silicon') to designate an unknown element that would reside three periods lower than the known element on a Mendeleev-type periodic table. See Mendeleev's predicted elements. Three. |
| fluoride | English (eng) | (chemistry) A binary compound of fluorine and another element or radical.. (chemistry) Any salt of hydrofluoric acid; for example, potassium fluoride. |
| trifluoride | English (eng) | (chemistry) any chloride containing three fluorine atoms in each molecule. |