Biology Dictionary

  • Oophorocystosis

    Oophorocystosis

    A condition involving the formation of cysts in the ovaries.

  • Ootheca

    Ootheca

    A protective casing or egg sac produced by some invertebrates, such as insects and certain crustaceans.

  • Open reading frame (orf)

    Open reading frame (orf)

    A sequence of DNA or RNA that can be translated into a protein, starting with a start codon and ending…

  • Operon

    Operon

    A cluster of genes in prokaryotes that are transcribed together and regulated by a single promoter.

  • Orad

    Orad

    In the direction of the mouth or head, used in anatomical descriptions.

  • Oral

    Oral

    Relating to the mouth or the act of eating or speaking.

  • Oral cavity

    Oral cavity

    The space within the mouth that includes the teeth, gums, tongue, and palate.

  • Orally

    Orally

    Relating to or occurring through the mouth, often referring to administration or ingestion.

  • Orbit

    Orbit

    The bony socket in the skull that contains the eye and its associated structures.

  • Orchiodynia

    Orchiodynia

    Pain in the testicle, often resulting from trauma or infection.