philtrum /phil·trum/ (fil´trum) the vertical groove in the median portion of the upper lip.
philtrum
philtrum (fil´tr
m),
phil·trum (f l tr m)n. pl. phil·tra (-tr ) The vertical indentation in the midline of the upper lip. Also called infranasal depression. |
philtrum
[fil′trəm]
the vertical groove in the center of the upper lip.
philtrum (fil´tr
m),n the vertical groove in the midline of the upper lip, extending downward from the nasal septum to the tubercle of the upper lip.
philtrum
the junction between the left and right upper lips; not distinctive in many animal species. In some, such as dogs, the term also applies to the noticeable junction between the two sides of the nose pad.
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