Bibrow

And, for the avoidance of doubt among the slower portion of the readership, I don't *actually* believe the monobrow to be a criminal indicator. That, of course, is the sole province of the tribrows like myself, monstrous offspring of a monobrow and bibrow parent.

Source: wiktionary

[> He would be more likely to have children with unibrows or good thick eyebrows, until one day there would be a whole unibrow race.] What do you think would happen if bibrow people tended to die before they had children and unibrow people tended to survive?

Source: wiktionary

Now he was taller, more muscular, and he'd let his hair grow out quite a bit – it was brown and curly, like Davin's, only Hunter's was longer. And the unibrow had graduated to a bibrow, with an ample amount of hairless skin in between.

Source: wiktionary