mail2 (def 1).
another term for mail2 (sense 1)
a person who holds and positions a chain in taking measurements. noun (pl) -men (surveying) a person who does the chaining in a survey
measurement of distance using a chain 66 feet (20 meters) long, of which one link equals 7.9 inches (20.1 cm).
a series of administrative or military ranks, positions, etc., in which each has direct authority over the one immediately below.
- Chain of custody
noun the order in which a piece of criminal evidence should be handled by persons investigating a case, specif. the unbroken trail of accountability that ensures the physical security of samples, data, and records in a criminal investigation