- an under or lower side.
Origin of underside
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for underside
Your triceps muscle, stationed on the underside of your upper arm, shortened.Cool It on the CrossFit: What’s Rhabdomyolysis?
October 11, 2013
Cook until the underside is a deep golden brown, then flip the grispelle with tongs and brown the other side.Italy's Best Dessert Secret
December 9, 2010
Cook and color the underside for several minutes, turn the chunks and crisp and color the other sides.
Cook for about 1-1/2 minutes until opaque on the underside; turn the pieces and lightly color the second side.
He laid the phone down and looked to the underside viewscreen.Space Viking
Henry Beam Piper
As he turned it over in his hand he observed some lettering on the underside.The Hand in the Dark
Arthur J. Rees
The warriors were on the underside, and Henry fell upon them.The Eyes of the Woods
Joseph A. Altsheler
Upon the underside of one of its sleeves there is a big ink blob.Sundry Accounts
Irvin S. Cobb
The wire should now be protected from touching the bird on its underside.Practical Taxidermy
- the bottom or lower surface
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
Word Origin and History for underside
Online Etymology Dictionary, © 2010 Douglas Harper