#initial-load-header-loader { visibility: hidden!important; } #initial-load-content { visibility: visible!important; } .expandable .expandable-control { display: none!important; } .expandable .expandable-content { display: block!important; visibility: visible!important; max-height: none!important; height: auto!important; }

atmospheric engine

noun

an early form of single-acting engine in which the power stroke is provided by atmospheric pressure acting upon a piston in an exhausted cylinder.

Origin of atmospheric engine

First recorded in 1815–25

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019