"pleating" in the noun sense
1. plication, pleating
the act of folding in parallel folds
"pleating" in the verb sense
1. ruffle, pleat
pleat or gather into a ruffle
"ruffle the curtain fabric"
2. pleat, plicate
fold into pleats
"Pleat the cloth"
Source: WordNet® (An amazing lexical database of English)
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