Definition of milium in English:


Pronunciation /ˈmilēəm/ /ˈmɪliəm/


  • A small, hard, pale keratinous nodule formed on the skin, typically by a blocked sebaceous gland.

    ‘There is no scar formation noted following the lesions of bullous pemphigoid, but milia may appear at sites of previously involved skin.’
    • ‘Porphyria cutanea tarda presents as bullae, vesicles, and milia on the dorsal hands and forearms but does not cause muscle weakness.’
    • ‘While a normal whitehead would rupture and go away, milia have developed a thin cover of skin cells that causes them to harden and turn into cysts.’


Mid 19th century from Latin, literally ‘millet’ (because of a resemblance to a millet seed).