Definition

Noun: A unit of length equal to 100 feet, used historically in surveying and engineering.

Usage

The term "engineer's chain" is a specific, technical unit of measurement. It is used to describe distances or lengths, particularly in the context of land surveying, civil engineering, and historical descriptions of property or infrastructure.

Examples

• The old property deed stated the boundary was exactly two engineer's chains from the marker stone.
• Early railroad plans often measured right-of-ways using the engineer's chain.
• One engineer's chain is equivalent to 100 feet or approximately 30.48 meters.

Advanced Usage

• The "engineer's chain" is distinct from the more common "Gunter's chain," which is 66 feet long. When reading historical documents, it is important to identify which chain unit is being referenced.
• The unit is largely obsolete in modern practice, having been replaced by metric or standard imperial units (feet, meters), but it remains relevant for understanding historical maps and legal descriptions.

Variants and Related Words

• Chain (surveying): A general term for a unit of length used in surveying. The "engineer's chain" is one specific type.
• Gunter's chain: A related unit of length equal to 66 feet, or one-tenth of a furlong.

Synonyms

• 100-foot unit: A descriptive synonym.
• (Historical) surveying chain: A general term that may refer to this unit in context.

Notes on Meaning

This word has a single, precise technical meaning as a defined unit of measurement. It does not refer to a physical object like a metal chain, but to an abstract unit of length.

Noun

1. a unit of length (100 ft)