meaning of imbricated
1. Bent and hollowed like a roof or gutter tile.
2. Lying over each other in regular order, so as to "break joints," like tiles or shingles on a roof, the scales on the leaf buds of plants and the cups of some acorns, or the scales of fishes; overlapping each other at the margins, as leaves in aestivation.
3. In decorative art: Having scales lapping one over the other, or a representation of such scales; as, an imbricated surface; an imbricated pattern.
4. used especially of leaves or bracts; overlapping or layered as scales or shingles