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.
Railroad Board is a smooth, thin, bristol-type board, colored on both sides, that is used for signs, posters, mailing cards, tickets, tags, and so forth. Each sheet is coated on both sides with bright colors or white. Thicknesses are 4 ply (0.014) and 6 ply (0.020).