Entry 1 sense Webster, 1913 Coloration /kŭlˌ-ẽr-āsh'-ən/ · Col·or·a·tion · IPA /kˌʌlərˈeɪʃən/ 01 n. The act or art of coloring; the state of being colored. 1. The act or art of coloring; the state of being colored. “The females . . . resemble each other in their general type of coloration.” — Darwin.