FRONTLET Meaning of FRONTLET in English [front.let] n [ME frontlette, fr. MF frontelet, dim. of frontel, fr. L frontale, fr. front-, frons] (15c) 1: a band or phylactery worn on the forehead 2: the forehead esp. of an animal Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012