| Answer | Crossword Clue |
|---|---|
| interfacial | between plane faces; of an interface |
| interfacially | INTERFACIAL, between plane faces; of an interface |
| dihedrals | An angle formed by two plane faces |
| truncates | Replace (an edge or an angle) by a plane, typically so as to make equal angles with the adjacent faces |
| truncating | Replace (an edge or an angle) by a plane, typically so as to make equal angles with the adjacent faces |
| goniometers | An instrument for the precise measurement of angles, esp. one used to measure the angles between the faces of crystals |
| goniometer | An instrument for the precise measurement of angles, esp. one used to measure the angles between the faces of crystals |
