an internal-combustion engine having hemispherical combustion chambers.
Other definitions for hemi- (2 of 2)
a combining form meaning “half,” used in the formation of compound words: hemimorphic.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use hemi in a sentence
In the case of a hemi-speos the internal effect must have been almost identical with that of any other religious building.A history of art in ancient Egypt, Vol. I (of 2) | Georges Perrot
The whole is finally protected by a hemi 360spherical covering of moss, made into a sort of felt and lined with wax.The Insect World | Louis Figuier
These may be divided into three classes: namely, the hemi-celluloses, the normal celluloses, and the compound celluloses.The Chemistry of Plant Life | Roscoe Wilfred Thatcher
In the characteristic type represented in fig. 1, f represents the prism, l the hemi-pyramid and P the clinopinacoid.
To induce what is called hemi-lethargy and hemi-catalepsy is not difficult.
British Dictionary definitions for hemi-
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
Scientific definitions for hemi-
A prefix meaning half, as in hemisphere, half a sphere.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.