Try Our Apps
Dictionary.com

follow Dictionary.com

2017 Word of the Year

hemi

[hem-ee] /ˈhɛm i/
noun, Automotive.
1.
an internal-combustion engine having hemispherical combustion chambers.
Origin of hemi
shortening of hemi-head

hemi-

1.
a combining form meaning “half,” used in the formation of compound words:
hemimorphic.
Origin
< Greek hēmi- half; cognate with Latin sēmi- semi-
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
Cite This Source
Examples from the Web for hemi
Historical Examples
  • hemi” means “half,” so each half of the globe is called a “hemisphere.

    Where We Live Emilie Van Beil Jacobs
  • 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
  • Fine fighters hemi Nape and his boys, were and well they bore themselves, but alas!

  • Kauaka hei a hemi taku pu, let not my gun be in the possession of hemi.

    First Lessons in the Maori Language William Leonard Williams
British Dictionary definitions for hemi

hemi-

prefix
1.
half: hemicycle, hemisphere Compare demi- (sense 1), semi- (sense 1)
Word Origin
from Latin, from Greek hēmi-
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
Cite This Source
Word Origin and History for hemi

hemi-

word-forming element meaning "half," from Greek hemi- "half," from PIE root *semi-, which is the source of Sanskrit sami, Latin semi- (see semi-), Old High German sami- "half," and Old English sam-, denoting a partial or imperfect condition (see sandblind).

Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
hemi in Medicine

hemi- pref.
Half: hemicardia.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
hemi in Science
hemi-  
A prefix meaning "half," as in hemisphere, half a sphere.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source

Word of the Day

Nearby words for hemi

Difficulty index for hemi

Some English speakers likely know this word

Word Value for hemi

0
0
Scrabble Words With Friends