T-cell

a type of white blood cell (LYMPHOCYTE) that forms in the bone marrow and moves to the thymus gland, situated in the thorax. There are a whole variety of T-cells involved in recognizing particular foreign bodies (ANTIGENS), and they are important in fighting viral infections and destroying bacteria that have penetrated the cells of the body.

Taken from Dictionary of Science

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T cells or T lymphocytes belong to a group of white blood cells known as lymphocytes, and play a central role in cell-mediated immunity. They can be distinguished from other lymphocyte types, such as B cells and natural killer cells by the presence of a special receptor on their cell surface called T cell receptors (TCR). The abbreviation T, in T cell, stands for thymus, since this is the principal organ responsible for the T cell's maturation. Several different subsets of T cells have been discovered, each with a distinct function.

Taken from Wikipedia

Sabkha

a flat, coastal belt situated between desert dunes and a lagoon or the sea. It is a site for the formation of evaporite deposits, notably CARBONATES and sulphates. It is named after the Trucial Coast in the Persian Gulf, sabkha being the Arabic word for salt flat.

Taken from Dictionary of Science

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Sabkha is a transliteration of the Arabic word for a salt flat. Sabkhas are supratidal, forming along arid coastlines and are characterized by evaporite-carbonate deposits with some siliciclastics. Sabkhas form subareal, prograding and shoaling-upward sequences that have an average thickness of a meter or less. The accepted type locality is along the coast of the Persian Gulf in the United Arab Emirates. This article outlines research into the evolution, hydrocarbon potential, climate, and dynamic nature of these deposits.

Taken from Wikipedia