(often initial capital letters) U.S. Aerospace. the section of an Apollo spacecraft containing the principal propulsion system, electrical system, water, and other supplies.
Words nearby service module
Origin of service module
First recorded in 1960–65
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
British Dictionary definitions for service module
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012