lamina
nounUK /ˈlæmɪnə/
US /ˈlæmənə/
A lamina is a thin flat layer or sheet of something.
The leaf has a thin lamina that catches the sunlight.
OTHER MEANINGS
2. The flat wide part of a leaf.
The lamina of the leaf was broad and green.
3. A thin plate or layer in rock or bone.
Scientists studied the lamina inside the fossil bone.
4. A flat part of a vertebra.
The lamina forms the back part of each vertebra.