Biology Dictionary

  • Hydrophilic

    Hydrophilic

    Having an affinity for water; readily absorbing or dissolving in water.

  • Hydrophobic

    Hydrophobic

    Repelling or failing to mix with water.

  • Hydrophyte

    Hydrophyte

    A plant that grows in or near water and is adapted to a wet environment.

  • Hydroquinone

    Hydroquinone

    An aromatic organic compound used as a reducing agent and in skin-lightening treatments.

  • Hydrosphere

    Hydrosphere

    All the water on the Earth’s surface, including oceans, lakes, rivers, and groundwater.

  • Hydrostatic skeleton

    Hydrostatic skeleton

    A structure found in many soft-bodied animals, where fluid pressure within a body cavity supports the body shape.

  • Hydrotropism

    Hydrotropism

    The growth or movement of a plant or part of a plant in response to moisture.

  • Human artificial chromosome (hac)

    Human artificial chromosome (hac)

    A synthetically engineered chromosome used in research or gene therapy to carry large DNA fragments into human cells.

  • Human immunodeficiency virus (hiv)

    Human immunodeficiency virus (hiv)

    A virus that attacks the immune system, specifically T cells, and can lead to AIDS if untreated.

  • Humeroulnar

    Humeroulnar

    Relating to the humerus and the ulna bones, forming part of the elbow joint.