Lamina may refer to: Science and technology Planar lamina, a two-dimensional planar closed surface with mass and density, in mathematics Laminar flow, (or streamline flow) occurs when a fluid flows in parallel layers, with no disruption between the layers Lamina (algae), a structure in seaweeds Lamina (anatomy), with several meanings Lamina (leaf), the flat part of a leaf, an organ of a plant Lamina, the largest petal of a floret in an aster family flowerhead: see Lamina (spider), a genus in the family Toxopidae Lamina (neuropil), the most peripheral neuropil of the insect visual system Nuclear lamina, another structure of a living cell Basal lamina, a structure of a living cell Lamina propria, the connective part of the mucous Lamina of the vertebral arch Lamination (geology), a layering structure in sedimentary rocks usually less than 1 cm in thickness Laminae, a part of the horse hoof Laminae, another name for the core lamiids, a clade in botany See also Lamia, a creature from Greek mythology. Lamia (Basque mythology), a creature from Basque mythology Lamina cribrosa (disambiguation) Laminar (disambiguation)