adjective. ['ˈθɪkənɪŋ, ˈθɪknɪŋ'] accumulating and becoming more intense.
adjective. ['ˈθɪkənɪŋ, ˈθɪknɪŋ'] becoming more intricate or complex.
noun. ['ˈθɪkənɪŋ, ˈθɪknɪŋ'] the act of thickening.
noun. ['ˈθɪkənɪŋ, ˈθɪknɪŋ'] any thickened enlargement.
noun. ['ˈθɪkənɪŋ, ˈθɪknɪŋ'] any material used to thicken.