Category: F

  • Fetal uterus

    A uterus that is retarded in development and possesses an extremely long cervical canal. A uterus that has not reached the typical size expected for the woman’s age.  

  • Follicular ulcer

    A tiny ulcer originating in a lymph follicle and affecting a mucous membrane.  

  • Functioning tumor

    A tumor, that is able to synthesize the same product as the normal tissues from which it arises, especially an endocrine or nonendocrine tumor that produces hormones.  

  • False tumor

    An enlargement due to hemorrhage into tissue or extravasation of fluid into a space, rather than cancer.  

  • Follicular tuberculid

    A cutaneous eruption characterized by the presence of groups of follicular lesions, especially on the trunk.  

  • Fibrous tubercle

    A fibrous tissue that has replaced a previously inflamed area.  

  • Focal trough

    A three-dimensional area within which structures are accurately reproduced on a panoramic radiograph. Positioning the patient within the focal trough is critical to producing a panoramic radiograph that clearly reproduces oral structures.  

  • Frontal triangle

    The triangle bounded by the maximum frontal diameter and the lines joining its extremities and the glabella.  

  • Facial triangle

    The triangle bounded by the lines uniting the basion and the alveolar and nasal points, and one uniting the nasal and basion.  

  • Forced tremor

    A tremor continuing after voluntary motion has ceased.