Rules of word formation o nasopharyngeal pharyngonasal nose throat ☆ dentosurgical tooth surgery oo dyschondroplasia chondrodysplasia bad cartilage development, formationRules Of Word Formation ❖nasopharyngeal pharyngonasal ↓ ↓ nose throat ❖dentosurgical ↓ ↓ tooth surgery ❖dyschondroplasia chondrodysplasia ↓ ↓ ↓ bad cartilage development, formation