əˈkyümə̇n also aˈ-; ˈakyəmə̇n also -ˌmen noun
( -s )
Etymology: Latin, literally, point, from acuere to sharpen — more at acute
1. : acuteness of mind : keenness of perception, discernment, or discrimination : shrewdness especially in practical matters
loses confidence in the acumen of reviewers — E.S.McCartney
business acumen and judicious handling of capital — William McFee
2. botany : a tapering point (as of a leaf)
3. : a short spine on the rostrum of a crayfish or other crustacean