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Masonry laid without mortar.

Said of masonry that has been laid without the use of mortar.

An oven for drying and seasoning cut lumber.

A joint without mortar.

The contraction of plaster, cement paste, mortar, or concrete caused by loss of moisture.

A vegetable oil which oxidizes easily on exposure to air and forms a hard, dry film; esp. useful in paints.

A substance added to paints and varnishes to prevent too rapid drying or skin drying; used to promote a high