Biology Dictionary

  • Hyaloiditis

    Hyaloiditis

    Inflammation of the hyaloid membrane of the eye.

  • Hyaluronic acid

    Hyaluronic acid

    A polysaccharide found in connective tissue, skin, and synovial fluid, known for retaining moisture and lubricating joints.

  • Hybrid

    Hybrid

    An organism resulting from the crossbreeding of two different species, breeds, or varieties.

  • Hybrid infertility

    Hybrid infertility

    A condition in which hybrid offspring are sterile and cannot produce viable offspring, often due to chromosomal incompatibility.

  • Hybrid vigor

    Hybrid vigor

    Also called heterosis; the phenomenon where hybrid offspring show improved or enhanced biological functions compared to parents.

  • Hybrid zone

    Hybrid zone

    A geographic area where interbreeding between two species or populations occurs and hybrid offspring are common.

  • Hybridization

    Hybridization

    The process of combining different varieties or species to create a hybrid with traits from both parents.

  • Homoiotherm

    Homoiotherm

    An organism that maintains a constant body temperature regardless of environmental temperature, similar to homeotherm.

  • Homologous

    Homologous

    Structures, genes, or chromosomes that share a common ancestry or origin.

  • Homologous chromosomes

    Homologous chromosomes

    Pairs of chromosomes that have the same genes at the same loci, one inherited from each parent.