Word parts absorptive + -ity Pronunciation (US) IPA (key): /æbˌsɔrpˈtɪvə.ti/ or /əbˌsɔrpˈtɪvə.ti/ Audio (US)(file) Noun Singular absorptivity Plural absorptivities The absorptivity of a material is defined by how much the material can absorb another substance.Wikiwand - on Seamless Wikipedia browsing. On steroids.Remove ads