| Answer | Crossword Clue |
|---|---|
| TOES | An ai has three; an unau, two |
| ferrocenes | An orange crystalline compound whose molecule has a sandwich structure in which two planar cyclopentadiene ligands enclose an iron atom |
| ferrocene | An orange crystalline compound whose molecule has a sandwich structure in which two planar cyclopentadiene ligands enclose an iron atom |
| lensed | a piece of transparent material (as glass) that has two opposite regular surfaces either both curved or one curved and the other plane and that is used either singly or combined in an optical instrument for forming an image by focusing rays of light |
