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tall oil(täl, tôl)
A resinous oily liquid composed of a mixture of rosin acids and fatty acids obtained as a byproduct in the treatment of pine pulp and used in soaps, emulsions, and lubricants.
[Partial translation of German Tallöl, from partial translation of Swedish tallolja : tall, pine (from Old Norse thöll, young pine tree) + olja, oil.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Chemistry) any of various oily liquid mixtures obtained by acidifying the liquor resulting from the treatment of wood pulp with sodium hydroxide: it contains chiefly rosin acids and fatty acids and is used in making soaps and lubricants
[C20: partial translation of German Tallöl, from Swedish tallolja, from tall pine + olja oil]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
a resinous secondary product from the manufacture of chemical wood pulp.
[1925–30; < Swedish tallolja, derivative of tall pine]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.