| quadratförmig | square square-shaped |
| quaderförmig | cuboid cuboidal |
| Quadratfuß | square foot |
| Quadratum | quadrate bone |
| Quadratur | quadrature |
| Quadratwurzel | square root |
| Quadrofonie | quadraphonic sound |
| punktförmig | dot-like dot-shaped punctiform |
| aalförmig | anguilliform eel-shaped |
| fadenförmig | filamentous filiform threadlike thready |
| nadelförmig | needlelike spicular |
| radförmig | rotiform wheel-like wheel-shaped |
| spiralförmig | helical spiral |
| Quadragesima | Lent |
| Quadrat- | square |
| Quadrat | square |
| Quadratestadt | City of Squares |
| Quadratmeile | square mile |
| Quadratmeter | square meter square metre |
| Quadratzahl | square number |