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direct-acting

American  
[dih-rekt-ak-ting, dahy-] / dɪˈrɛktˌæk tɪŋ, daɪ- /

adjective

  1. (of a steam pump) having the steam pistons connected directly to the pump pistons without a crankshaft or flywheel.

Etymology

Origin of direct-acting

First recorded in 1855–60

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.