We don't have synonyms for perpending yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are expending, portending and depending.
(n) :
A brick or stone that has its longest dimension perpendicular to the face of a wall, especially one that extends through the wall's entire thickness.
(n) :
A vertical joint (usually mortar) between bricks or blocks in a horizontal course.
(n) :
A brick or stone that has its longest dimension perpendicular to the face of a wall, especially one that extends through the wall's entire thickness.
(n) :
A vertical joint (usually mortar) between bricks or blocks in a horizontal course.