Emily Dickinson Lexicon

EN-GI-NEER, n. [Fr. ingenieur.]

1. In the military art, a person skilled in mathematics and mechanics, who forms plans of works for offense or defense, and marks out the ground for fortifications. Engineers are also employed in delineating plans and superintending the construction of other public works, as aqueducts and canals. The latter are called civil engineers.
2. One who manages engines or artillery. Philips.