| microfibră substantiv feminin | nearticulat | articulat | |
| nominativ-acuzativ | singular | microfibră | microfibra |
| plural | microfibre | microfibrele | |
| genitiv-dativ | singular | microfibre | microfibrei |
| plural | microfibre | microfibrelor | |
| vocativ | singular | microfibră, microfibro | |
| plural | microfibrelor | ||