• ferroportion,
• ferroporin,
• ferrorportin,
• feroprortin,
• ferroporten,
• ferroporton,
• femoportin,
• ferropirtin,
• ferroportim

• forceps,
• forbearing,
• supporting,
• farthing,
• exporting,
• reportedly,
• turpentine,
• importing,
• Portending,
• portion,
• Comporting,
• porphyrin,
• Transforming.

The adjective form of the word "ferroportin" would be "ferroportinal".

The plural form of the word "ferroportin" is "ferroportins".

The singular form of the word "ferroportin" is "ferroportin". It is both the singular and plural form.