What does lamellar mean?
Lamellar is an adjective describing something made of, arranged in, or resembling thin layers or plates. It is especially common in technical vocabulary, including anatomy, where lamellar bone forms a major part of mature bone tissue; biology, where sensory corpuscles may have lamellar structures; and ophthalmology, where lamellar tears and lamellar keratopathy concern the layers of the cornea. In materials science, the term can describe structures built from thin sheets or plates. The word is related to lamella, a small thin plate or scale, and lamina, a thin sheet or layer. Although layered is a simpler and more general alternative, lamellar is valuable when the arrangement, thickness, or plate-like character of the layers is significant. Its specialized associations give it a precise, technical tone rather than making it suitable for ordinary descriptive writing.
adjectiveMade up of, arranged in, or resembling thin layers or plates.
- Made up of or arranged in thin layers or plates.
"The beetle's protective shell has a lamellar structure."
"Microscopic examination showed that the damaged bone had formed new lamellar tissue."
"The athlete's diagnosis was a lamellar tear, affecting the inner layers of the cornea."
From an insect's layered armor to the eye's delicate corneal layers, lamellar is the word for nature's stacked structures.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does lamellar come from?
Lamellar entered English through French and New Latin from Latin lamella, meaning a small thin plate or scale. The Latin lamella is a diminutive of lamina, meaning a thin plate or layer. The same root underlies related English words such as laminate and laminar, while the emphasis on small plates is retained in the adjective lamellar.
How lamellar is actually used
This is primarily a technical adjective used in anatomy, biology, medicine, ophthalmology, and materials science. It is more specific than the general words layered and laminated because it emphasizes thin plates or closely arranged layers.
Easily confused with lamellar
Laminar refers broadly to layers or to flow in layers, whereas lamellar more specifically describes something composed of thin plates or arranged in distinct lamellae.