Try Our Apps


World Series Quiz


[soh-luh m] /ˈsoʊ ləm/
noun, plural sola
[soh-luh] /ˈsoʊ lə/ (Show IPA),
the upper part of the soil profile, which is influenced by plant roots; the A horizon and the B horizon.
Origin of solum
1820-30; < Latin: base, bottom; see sole2 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2016.
Cite This Source
Examples from the Web for solum
Historical Examples
British Dictionary definitions for solum


noun (pl) -lums, -la (-lə)
the upper layers of the soil profile, affected by climate and vegetation
Word Origin
C19: New Latin from Latin: the ground
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 solum

Latin, "ground, soil," of unknown origin.

Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
solum in Science
Plural sola or solums
The upper layers of a soil profile in which soil formation occurs. The A and B horizons in an ABC soil are part of the solum.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source

Word of the Day

Difficulty index for solum

Many English speakers likely know this word

Word Value for solum

Scrabble Words With Friends

Nearby words for solum