[mass noun]a skin condition characterized by red pimples on the skin, especially on the face, due to inflamed or infected sebaceous glands and prevalent chiefly among adolescents 痤疮,粉刺,青春痘
派生 acned adjective 语源
mid 19th cent.: via modern Latin from Greek aknas, a misreading of akmas, accusative plural of akmē 'highest point, peak, or facial eruption'; compare with acme