English word trichloride comes from English tri-, English chloride
| 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. |
| chloride | English (eng) | (chemistry) any salt of hydrochloric acid, such as sodium chloride, or any binary compound of chlorine and another element or radical. |
| trichloride | English (eng) | (chemistry) any chloride containing three chlorine atoms in each molecule. |