Entry 1 sense Webster, 1913 Lapping /lăp'-ĭng/ · Lap·ping · IPA /ˈlæpɪŋ/ 01 n. A kind of machine blanket or wrapping material used by calico printers. 1. A kind of machine blanket or wrapping material used by calico printers. Phrases & compounds Lapping engine — A machine for forming fiber info a lap. See its Lap, 9.