Definition of honeycomb work in US English:

honeycomb work

noun

  • 1A natural structure, decoration, ornamentation, etc., having a honeycomb pattern, or made to resemble honeycomb in some way.

  • 2Architecture ornamentation on a ceiling (especially of a dome or arch) consisting of clusters of small vaulted arches arranged intricately in overhanging tiers, typical of Moorish architecture.

Origin

Early 18th century; earliest use found in William Stukeley (1687–1765), antiquary and natural philosopher.