cross or be crossed intricately together; interweave: [with object]:Jane interlaced her fingers to form a cup (as adjective interlacing)closely interlacing branches
[with object] (interlace something with) mingle or intersperse something with:discussion interlaced with esoteric mathematics
[with object] Electronics scan (a video image) in such a way that alternate lines form one sequence which is followed by the other lines in a second sequence: (as adjective interlaced)interlaced displays
late Middle English: from Old French entrelacier, from entre- 'between' + lacier 'to lace'
interlace in other Oxford dictionaries
Definition of interlace in the US English dictionary