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  1. an Indian shrub, Aeschynomene aspera, of the legume family, the pith of which is used for making helmets.
Compare topee.

Origin of sola1

First recorded in 1835–45, sola is from the Hindi word solā


[saw-lah; English soh-luh]
adjective Latin.
  1. (referring to a woman) alone; by oneself (used formerly in stage directions).
Compare solus.


[soh-luh m]
noun, plural so·la [soh-luh] /ˈsoʊ lə/, so·lums.
  1. 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
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for sola


  1. the feminine form of solus


noun plural -lums or -la (-lə)
  1. 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

Word Origin and History for sola



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

Online Etymology Dictionary, © 2010 Douglas Harper

sola in Science


Plural sola solums
  1. 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.
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