Entry 1 sense Webster, 1913 accrescence /(ăk*krĕs"sens)/ · ac·cres·cence · IPA /əˈkɹɛsəns/ 01 n. Continuous growth; an accretion. 1. Continuous growth; an accretion.[R.] “The silent accrescence of belief from the unwatched depositions of a general, never contradicted hearsy.” — Coleridge.