wood tar


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wood tar

n.
A viscous black fluid that is a byproduct of the destructive distillation of wood and is used in pitch, preservatives, and medicines.
References in periodicals archive ?
The wood tars produced during firing were used for caulking ships, producing dyes and were used by the Egyptians for embalming.
Some of the substances to screen for pine and spruce allergies include colophony, oil of turpentine, and wood tars.