acme, -acmic (Greek: highest point; prime, best time).
1. The highest point; point of culmination; peak.
2. In medicine, the crisis or critical stage of a disease.
1. A sensation of a sharp point touching the skin.
2. In medicine, "a cutaneous sensation of a sharp point".
In evolution, the stage or period of development.
The period of menstrual activity in a woman's life.
A point or period at which the prime or highest vigor in one's life is past; the point when the crisis of a fever is past.
The peak of maturity of certain parts of flowers.
The Barnhart Dictionary of Etymology states that acne was borrowed from Late Greek, akne, in 1835, as a New Latin medical term. It was misspelled by the 6th century author, Aëtius, of the Greek "akme", (highest) point.
Klein's Comprehensive Etymological Dictionary of the English Language says, "this word owes its existence to a clerical error of Greek, akme, 'point', having been miswritten as akne."