A low shrubby tree of the genus Pistacia (P. Lentiscus),
growing upon the islands and coasts of the Mediterranean, and producing
a valuable resin; – called also, mastic tree.

A resin exuding from the mastic tree, and obtained by
incision. The best is in yellowish white, semitransparent tears, of a
faint smell, and is used as an astringent and an aromatic, also as an
ingredient in varnishes.

A kind of cement composed of burnt clay, litharge, and
linseed oil, used for plastering walls, etc.