[TA] a pointed projection at the anterior extremity of the intermaxillary suture; the tip, as seen on a lateral cephalometric radiograph, is used as a cephalometric landmark. Synonym(s): spina nasalis anterior corporis maxillae [TA], anterior nasal spine
an·te·ri·or na·sal spine of max·il·la
(an-tērē-ŏr nāzăl spīn mak-silă) [TA] Pointed projection at anterior extremity of the intermaxillary suture.