comedo
noun
[ ˈkɒmɪdəʊ ]
• technical term for blackhead (sense 1).
Origin:
mid 19th century: from Latin, literally ‘glutton’, from comedere ‘eat up’, from com- ‘altogether’ + edere ‘eat’. Used formerly as a name for parasitic worms, the term here alludes to the sebaceous secretions resembling small worms that can be squeezed from blackheads.
