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n.1.(Anat.) A frænum.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive ?
Original article:- Diagnosing abuse: a systematic review of torn fraenulum and intra-oral injuries.
It shows that a torn labial fraenulum can no longer be regarded as pathognomonic of physical abuse.