wood tar

wood tar

noun
a dark viscid product obtained from wood by distillation or by slow burning without flame, used in its natural state to preserve timber, rope, etc., or subjected to further distillation to yield creosote, oils, and a final residuum, wood pitch.

Origin:
1855–60

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Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
wood tar
 
n
any tar produced by the destructive distillation of wood: used in producing tarred cord and rope and formerly in medicine as disinfectants and antiseptics

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Encyclopedia Britannica
Encyclopedia

wood tar

liquid obtained as one of the products of the carbonization, or destructive distillation, of wood. There are two types: hardwood tars, derived from such woods as oak and beech; and resinous tars, derived from pine wood, particularly from resinous stumps and roots. Crude wood tar may be used as fuel or for preserving rope and wood and for caulking. The tar may be fractionated to yield creosote, oils, and pitch

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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