1The presence of pimples; the fact of being covered with pimples.
The presence or development of small round swellings on a metal or other surface.
Late 16th century. From pimple + -ing.
That is erupting in pimples, pimply; that causes pimples or goose pimples.
Early 17th century; earliest use found in Tobias Venner (1577–1660), physician and medical writer. Originally from pimple + -ing; in later use also from pimple + -ing.