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.
The basic unit of measurement for lumber. One board foot is equal to a 1 thick board, 12 in width and 1' in length. Thus, a 10' long, 12 wide, 1 thick piece contains 10 board feet. When calculating board feet, nominal sizes are assumed.