glabellum

Noun

glabella (plural glabellas or glabellae)

1. The space between the eyebrows and above the nose.
   • The good Doctor had perceptibly aged since last year but was as sturdy and square-shaped as ever with his well-padded shoulders, square chin, square nostrils, leonine glabella, and rectangular brush of grizzled hair that had something topiary about it.1957 March 7, Vladimir Nabokov, chapter 6.7, in Pnin, Heinemann, page 156

   Synonyms:

   mesophryon

2. The axial protuberance on the cephalon of certain arthropods (especially trilobites).