quad-
English
Etymology
Reduced form of quadri-, from Latin quattuor (“four”).
Prefix
quad-
- Involving four elements.
- (chemistry) Used for the digit four to form systematic element names of elements whose existence has been predicted, and which have not yet been given a trivial name.
- un- (“1”) + bi- (“2”) + quad- (“4”) + -ium (element suffix) → unbiquadium (“element 124”)
Derived terms
English terms prefixed with quad-