Biology Dictionary

  • Apical dominance

    Apical dominance

    A phenomenon in which the main central stem of the plant is dominant over other side stems due to hormonal…

  • Apical meristem

    Apical meristem

    A region of actively dividing cells found at the tips of roots and shoots in plants, responsible for primary growth.

  • Apicomplexa

    Apicomplexa

    A phylum of parasitic protozoa, including Plasmodium, the cause of malaria; not plants but important in biology.

  • Apiology

    Apiology

    The scientific study of bees.

  • Apiphobia

    Apiphobia

    An intense fear of bees.

  • Anterior

    Anterior

    The front end of an organism; not commonly used in plant morphology.

  • Anterolateral

    Anterolateral

    Located in front and to the side; rarely used in plant anatomy.

  • Anteroposterior

    Anteroposterior

    From front to back; a term more relevant in animal anatomy than plant biology.

  • Anther

    Anther

    The part of a stamen that produces and releases pollen in flowering plants.

  • Antheridiophore

    Antheridiophore

    A stalk or structure bearing antheridia (male sex organs) in non-vascular plants like liverworts.