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philtrum Syllabification: philtrum
Pronunciation: /ˈfiltrəm/

Definition of philtrum in English:


1The vertical groove between the base of the nose and the border of the upper lip.
Example sentences
  • Geordie leaned over and carefully daubed a Hitler moustache across Danny's philtrum.
  • A flat or smooth philtrum can present in persons with fetal alcohol spectrum disorders.
  • Nevertheless, early correction may be indicated because the prolabium usually contains more than enough tissue to create a philtrum of normal size.
1.1The junction between the two halves of the upper lip or of an animal’s nose.
Example sentences
  • A midline groove called the philtrum divides the rhinarium into two, each half containing a nostril.
  • Two dogs were presented with dermal arteritis of the nasal philtrum associated with repeated episodes of bleeding.
  • Superficial ulcers appear on the dorsum of the tongue, hard palate, and nasal philtrum.


Latin, from Greek philtron 'love potion'.

Words that rhyme with philtrum

outcome • sugarplum • lanthanum

Definition of philtrum in:

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Pronunciation: fôrˈtisəˌmō
(especially as a direction) very loud or loudly