Biology Dictionary

  • Dichroic (also dichromatic)

    Dichroic (also dichromatic)

    Referring to substances or materials that show different colors when viewed from different angles, due to differential absorption of light.

  • Dicot

    Dicot

    A type of angiosperm (flowering plant) that has two seed leaves, or cotyledons, in the embryo.

  • Dicotyledon

    Dicotyledon

    A subclass of angiosperms (flowering plants) characterized by having two cotyledons in the seed.

  • Dictyosome

    Dictyosome

    A stack of membrane-bound vesicles found in the cytoplasm of plant cells, part of the Golgi apparatus involved in the modification and packaging of proteins.

  • Diet

    Diet

    The habitual food and drink consumed by an organism, typically referring to a balanced intake of nutrients for health maintenance.

  • Diethylaminoethyl cellulose (deae or deae-c)

    Diethylaminoethyl cellulose (deae or deae-c)

    A cellulose derivative used as a stationary phase in ion-exchange chromatography to separate biological molecules.

  • Differentiation

    Differentiation

    The process by which a cell becomes specialized to perform a specific function during development or in response to environmental signals.

  • Diffuse-porous wood

    Diffuse-porous wood

    Wood characterized by the uniform distribution of pores throughout the growth rings, typically found in hardwoods.

  • Diffusion

    Diffusion

    The movement of molecules or particles from an area of high concentration to an area of low concentration, driven by concentration gradients.

  • Diffusion gradient

    Diffusion gradient

    The difference in concentration of a substance across a space, influencing the rate and direction of diffusion.