An instrument used to position the head to produce oriented, reproducible lateral and posterior-anterior head films. SYN: cephalostat. [cephalo- + G. metron, measure]
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ceph·a·lom·e·ter .sef-ə-'läm-ət-ər n an instrument for measuring the head
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ceph·a·lom·e·ter (sef″ə-lomґə-tər) [cephalo- + -meter] an instrument for measuring the head; an orienting device for positioning the head for radiographic examination and measurement.Medical dictionary. 2011.