effusive

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ef·fu·sive / iˈfyoōsiv/ • adj. 1. expressing feelings of gratitude, pleasure, or approval in an unrestrained or heartfelt manner: an effusive welcome.2. Geol. (of igneous rock) poured out when molten and later solidified. ∎  of or relating to the eruption of large volumes of molten rock.DERIVATIVES: ef·fu·sive·ly adv.ef·fu·sive·ness n.

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