n.
Pronunciation: r ō - ' z ā -sh( ē -) ə
Function: noun
Etymology: short for New Latin acne rosacea rose-colored acne
Date: 1876
: a chronic inflammatory disorder involving especially the skin of the nose, forehead, and cheeks that is characterized by congestion, flushing, telangiectasia, and marked nodular swelling of tissues especially of the nose ― called also acne rosacea