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Definition
 
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Animal Structures definition: Organs and other anatomical structures of non-human vertebrate and invertebrate animals.
Embryonic Structures definition: The anatomical parts that make up an organism in the early stages of development.
Group Structure definition: The informal or formal organization of a group of people based on a network of personal relationships which is influenced by the size and composition, etc., of the group.
Molecular Conformation definition: The characteristic three-dimensional shape of a molecule.
conformation definition: any of the spatial arrangements of a molecule that can be obtained by rotation of the atoms about a single bond.
Conformation definition: The three-dimensional arrangement of something in space. Often refers to the arrangement of the side groups on a molecule which can freely rotate into different positions without breaking any bonds.
Molecular Structure definition: The location of the atoms, groups or ions relative to one another in a molecule, as well as the number, type and location of covalent bonds.
Macromolecular Structure definition: Any very large complex molecule including, proteins, nucleic acids and carbohydrates.
cell component definition: contents and specific structures of a cell.
Cell component definition: Cardinal cell part which is demarcated from other cell parts by predominantly bona fide anatomical surfaces. Examples: golgi complex, endosome, myofilament.
Cellular Structures definition: Components of a cell.
Cell Structure definition: The components of the cell and how they are arranged.
Fetal structure definition: Gestational structure, which is the developmental form of a vertebrate animal or any of its parts at any given time point from 8 weeks of gestation to parturition. Examples: fetus, fetal organ, fetal body part, placenta.
Fetal Structures definition: The anatomical parts that make up a viviparous mammalian organism in the postembryonic period of development.
anatomy definition: tree section heading for anatomical, physiological, and related terms.
Anatomical structure definition: Material anatomical entity which is generated by coordinated expression of the organism's own genes that guide its morphogenesis; has inherent 3D shape; its parts are connected and spatially related to one another in patterns determined by coordinated gene expression. Examples: heart, right ventricle, mitral valve, myocardium, endothelium, lymphocyte, fibroblast, thorax, cardiovascular system, hemoglobin, T cell receptor.
Anatomical structure definition: Material physical anatomical entity which has inherent 3D shape; is generated by coordinated expression of the organism's own structural genes; consists of parts that are anatomical structures; spatially related to one another in patterns determined by coordinated gene expression. Examples: heart, right ventricle, mitral valve, myocardium, endothelium, lymphocyte, fibroblast, thorax, cardiovascular system, hemoglobin, gene.
Chromosome Structures definition: Structures which are contained in or part of CHROMOSOMES.
Chromosome Structure definition: The 3-D organization of histones and other proteins on chromosomal DNA in the nucleus and allow for its form and function during cellular growth and division.
Cell Membrane Structures definition: Structures which are part of the CELL MEMBRANE or have cell membrane as a major part of their structure.
Cell Nucleus Structures definition: Structures that are part of or contained in the CELL NUCLEUS.
Cytoplasmic Structures definition: Components of the cytoplasm excluding the CYTOSOL.
Genetic Structures definition: The biological objects that contain genetic information and that are involved in transmitting genetically encoded traits from one organism to another.
Anatomic Structure, System, or Substance definition: Body tissue, region, surface, cavity, fluid, organ, or collection of organs.
G-Quadruplexes definition: Higher-order DNA and RNA structures formed from guanine-rich sequences. They are formed around a core of at least 2 stacked tetrads of hydrogen-bonded GUANINE bases. They can be formed from one two or four separate strands of DNA (or RNA) and can display a wide variety of topologies, which are a consequence of various combinations of strand direction, length, and sequence. (From Nucleic Acids Res. 2006;34(19):5402-15)
G-Quartets definition: G-quadruplexes are multi-stranded structures held together by square planes of four guanines ('G-quartets') interacting by forming Hoogsteen hydrogen bonds. G-quartet structures has been developed as novel anti-HIV agents. Several critical structure-activity relationships between HIV-1 integrase and G-quartet oligonucleotides have been demonstrated.
Plant Structures definition: The parts of plants, including SEEDS.
Viral Structures definition: The structural parts of the VIRION.
Bacterial Structures definition: The parts of bacteria.
Fungal Structures definition: The parts of fungi.
Embryonic Structures, Mammalian definition: The anatomical parts that make up a mammalian organism in the early stages of development.
Embryonic Structures, Nonmammalian definition: The anatomical parts of a non-mammalian animal during its early stages of development.