Déclinaison / Conjugueur latin
| SINGULIER |
| Nom. | perpendiculum |
| Gen. | perpendiculi |
| Dat. | perpendiculo |
| Acc. | perpendiculum |
| Abl. | perpendiculo |
| Voc. | perpendiculum |
| PLURIEL |
| Nom. | perpendicula |
| Gen. | perpendiculōrum |
| Dat. | perpendiculis |
| Acc. | perpendicula |
| Abl. | perpendiculis | |