ERGOGRAPH

Etymology 1

Noun

ergograph (plural ergographs)

An instrument for measuring and recording the work done by a single muscle or set of muscles, the rate of fatigue, etc.

Etymology 2

Noun

ergograph (plural ergographs)

A graph that shows a relation between human activities, or agricultural/climate factors, and a seasonal year.

Source: Wiktionary

Er"go*graph, n. [Gr. work + -graph.]

Definition: An instrument for measuring and recording the work done by a single muscle or set of muscles, the rate of fatigue, etc. -- Er`go*graph"ic (#), a.

Source: Webster’s Unabridged Dictionary 1913 Edition