A cell is the intersection between a row and a column on a spreadsheet that starts with cell A1. Below is an illustrated example of a highlighted cell in Microsoft Excel; the cell address, cell name, or cell pointer D8 (column D, row 8) is the selected cell and the location of what is being modified.
Travertine is a natural stone that many people use in their homes. Travertine is naturally porous because it forms underground near hot springs where gases escape through the body of what becomes the slab. It is naturally porous and is a tan or whitish color.
Definition: Tartar is the hardened product of longstanding plaque accumulating minerals from the saliva and foods. Plaque is the soft accummulation of food debris and bacteria around teeth. These bacteria feed on left over food in the mouth to excrete toxins that irritate the gums and dissolve the bone. \Tartar\, n. 2  1. [Per. 3  T[=a]t[=a]r, of Tartar origin.] A native or inhabitant of Tartary in Asia; a member of any one of numerous tribes, chiefly Moslem, of Turkish origin, inhabiting the Russian Europe; -- written also, more correctly but less usually, {Tatar}.