Entry 1 sense Webster, 1913 Disposer /dĭs-pōz'-ẽr/ · Dis·pos·er · IPA /dɪspˈoʊzər/ 01 n. One who, or that which, disposes; a regulator; a director; a bestower. 1. One who, or that which, disposes; a regulator; a director; a bestower. “Absolute lord and disposer of all things.” — Barrow.