Definition: Scientific measurements, often taken by means of radiographic imaging, of the head in the living, or of the cadaveric head with soft tissues in place, using specific reference points and sufficient standardization to allow reproducible results. Commonly used to document age based on cephalic growth (as in obstetric ultrasonography) or to plan or measure progress in cephalic remodeling (as in orthodontics).
[cephalo- + G. metron, measure]
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Examples: glitazone, GI cocktail, etc.