| Answer | Crossword Clue |
|---|---|
| triclinic | of crystals, having, or characterized by, three unequal axes intersecting at oblique angles |
| orthorhombic | Of or denoting a crystal system or three-dimensional geometric arrangement having three unequal axes at right angles |
| monoclinic | Of or denoting a crystal system or three-dimensional geometric arrangement having three unequal axes of which one is at right angles to the other two |
| monoclinic | referable to three unequal axes, two intersecting each other obliquely and at right angles to the third |
