Biology Dictionary

  • Thioester

    Thioester

    A chemical compound in which an ester group is bonded to a sulfur atom, often involved in metabolic reactions such…

  • Thiol

    Thiol

    A functional group containing sulfur and hydrogen, commonly found in various biochemical compounds such as cysteine in proteins.

  • Thoracic

    Thoracic

    Pertaining to the chest or thorax, especially the region of the body between the neck and the diaphragm.

  • Thoracic duct

    Thoracic duct

    The main lymphatic vessel that drains lymph from the lower body and left side of the upper body into the…

  • Thorax

    Thorax

    The chest area of an animal, particularly in vertebrates, that houses vital organs such as the heart and lungs.

  • Thorn

    Thorn

    A sharp, stiff, pointed structure found on some plants, typically a modified leaf or stem, used for defense.

  • Tetrad scar

    Tetrad scar

    The marks left on chromosomes after the process of crossing over, visible as X-shaped structures during meiosis.

  • Tetrahedron

    Tetrahedron

    A polyhedron with four triangular faces, often used in geometry to represent molecular structures or symmetry.

  • Tetrahydrofolate (thf or tetrahydrofolic acid)

    Tetrahydrofolate (thf or tetrahydrofolic acid)

    A form of folate (vitamin B9) that is involved in various biological reactions, including DNA synthesis and amino acid metabolism.

  • Tetramer

    Tetramer

    A molecule composed of four subunits, typically referring to proteins made up of four polypeptide chains.