fronsn.

/frɒnz/the world > animals > animal body > general parts > head and neck > [noun] > face > middle of face
1856–8 W. Clark tr. J. van der Hoeven I. 290 Polyzonium Brandt. Two series of 3 small eyes in the frons.
This entry has not yet been fully updated (first published 1898; most recently modified version published online March 2018).