#1 thickening s. [deepening] accumulating and becoming more intense; "the deepening gloom"; "felt a deepening love"; "the thickening dusk". wn
#2 thickening n. [thickener] any material used to thicken; "starch is used in cooking as a thickening". wn
#3 thickening n. [node, knob] any thickened enlargement. wn
#4 thickening s. becoming more intricate or complex; "a thickening plot". wn
#5 thickening n. [inspissation] the act of thickening. wn
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