perpendicular plate
per·pen·dic·u·lar plate
noun \ˌpər-pən-ˈdik-yə-lər-\Definition of PERPENDICULAR PLATE
1
: a flattened bony lamina of the ethmoid bone that is the largest bony part assisting in forming the nasal septum
2
: a long thin vertical bony plate forming part of the palatine bone—compare horizontal plate








