[f. CULMINATE v. + -ING1.] The action of reaching the highest point; culmination. Often attrib., as in culminating point, point of culmination.
1726. trans. Gregorys Astron., I. 265. The same Index will likewise shew the culminating, rising or setting of a given Star.
1850. Gladstone, Glean., V. clxvii. 270. The culminating point of the Supremacy was in the reign of Edward VI.