We have no meanings for "perceptible frown" in our records yet.
1 A more than perceptible frown flashed across the face of the officer.
2 After he had smoked four cigarettes a perceptible frown approached his brow.
3 Uncle Godfrey's brow wore a perceptible frown .
4 She scanned some of the material, dismissed it with a barely perceptible frown , and slammed the volume closed.
5 The Archbishop returned with him, the Imperial scroll in his hand, and a distinctly perceptible frown on his brow.
6 Madame de la Fontaine dropped her eyes with a perceptible frown of displeasure; but again she looked up, smiling.
Grammar, pronunciation and more
This collocation consists of: