ˈakmē noun
( -s )
Etymology: Greek akmē point, highest point, culmination; akin to Greek akē point — more at edge
1. : the highest point or stage (as of growth or development)
reached the acme of its power
: the utmost degree : height , peak , summit
the acme of perfection
2. archaic : the period of maturity or full growth
3. : a hypothetical period of maximum evolutionary activity intermediate in the phylogenetic history of a stock between an initial emergent phase and a terminal aging phase