opus pseudisodomum: Ashlar with the stone blocks of each course alike, but differing from the stones of other courses in height, length, or thickness, so that while continuous horizontal joints were maintained they varied in height, resulting in masonry laid in regular courses of alternating broad and narrow bands. Alexander ‘Greek’ Thomson used pseudisodomic masonry at the Caledonia Road Church, Glasgow (1856), with the narrow bands projecting slightly from the face of the wider bands, emphasizing the horizontal qualities of the building. © A Dictionary of Architecture and Landscape Architecture 2000, originally published by Oxford University Press 2000.

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