Telomeres are short tandem repeats of nucleotides at the ends of chromosomes. Let's break this definition down a bit. Nucleotides are the building blocks of DNA, which is the carrier of genetic information. A tandem arrangement is when things are placed one behind another.
Definition: A board foot is a unit of measure used in the logging and lumber industry. It is a volume measurement that refers to the volume of a board.
Lineal, square and board feet. A lineal foot measures one dimensional distance and is expressed as a single number to represent that distance. The length of a 2x4 expressed as 96 illustrates lineal feet. Square foot measures area and is a two dimensional calculation expressed as width x length. The amount of tile needed to cover a 10' x 12' floor will be 120 square feet. Board feet measures volume and is a 3 dimensional calculation. A board foot is a volume of lumber measuring 1 thick x 12 long x 12 wide.