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/ˈlamdə/ Noun, pl. lambdas 1. The eleventh letter of the Classical and Modern Greek, the twelfth of the Old Greek. ( 2. The eleventh star in a constellation. (Google Dictionary) (Anatomy) 1. The junction of the lambdoid and sagittal sutures of the cranium. ( 2. The point at the back of the skull where the parietal bones and the occipital bone meet. (Google Dictionary) (Biology) 1. Denoting one of the two types of light polypeptide chain present in all immunoglobulin molecules (the other being kappa). (Google Dictionary) (Zoology) 1. Lambda moth, a moth so called from a mark on its wings, resembling the Greek letter. ( (Genetics) 1. A type of bacteriophage virus used in genetic research. (Google Dictionary) (Physics) 1. The cosmological constant. ( 2. A lambda baryon. ( (Computing, programming) 1. A lambda expression. ( (Symbol) 1. Unit representation of wavelength. ( 2. Celestial longitude. (Google Dictionary) Other forms: uppercase Λ, lowercase λ. Word origin: Greek: Λάμβδα or Λάμδα, lamda or...

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Lambdoid suture

Noun A dense, fibrous connective tissue joint on the posterior aspect of the skull that connects the parietal bones with the occipital bone. It is continuous with the occipitomastoid suture. Its name comes from its lambda-like shape. ( Also called lambdoidal...

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/ləˈmelə/ Noun, pl. lamellae (Mycology) 1. A papery rib beneath a mushroom cap. ( 2. Radiating leaflike spore-producing structures beneath the cap of a mushroom or similar fungus; gills of the mushroom. ( (Anatomy) 1. A plate-like structure in an animal. ( 2. A thin layer, membrane, scale, or platelike tissue or part, esp. in bone tissue. (Google Dictionary) (Cell biology) 1. Part of a chloroplast. ( 2. A membranous fold in a chloroplast. (Google Dictionary) (Botany) 1. Plate-like layers of pectin that cement cell walls of adjacent plant cells, and involved in forming plasmodesmata between cells and rendering stability in plants. ( 2. Thin scales or plate-like structures growing from the petals in certain flowers. ( 3. Thin sheets of cells standing up along the midrib of leaves in mosses. ( (Zoology) 1. Bony concentric layers surrounding the haversian canals in bone. ( 2. Thin layers or pages in a gill book involved in respiration, as in horseshoe crabs. ( 3. Structures involved in respiration, and are of two types: the primary and secondary gill lamellae that increase the amount of oxygen intake of the blood in fish. ( 4. Miniature ridges inside the bills of water-feeding ducks (Anatidae) and water birds (e.g. Phoenicopteridae), and serve as filters during feeding. ( 5. Flanges or teeth-forming barriers inside the aperture of a snail’s shell. ( 6. Precursors of the...

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