Definition of frenum in English:


(also fraenum)


  • another term for frenulum
    • ‘The abnormal fraenum is attached so low on the gum-line that it props apart the two front teeth.’
    • ‘An exaggerated fraenum in the centre of the inside upper lip may cause an unsightly central gap between the upper incisors.’
    • ‘Using either a scalpel or a laser, the surgeon will excise the frenum in question.’
    • ‘When any of these frenums are much shorter than normal, they can limit the movement of the tissues they attach to.’
    • ‘To avoid cutting through the fraenum, it is positioned slightly to one side underneath the tongue.’


Mid 18th century: from Latin, literally ‘bridle’.