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What does IMPERF stand for?

IMPERF stands for Imperforate (philately)

This definition appears very frequently and is found in the following Acronym Finder categories:

  • Slang/chat, popular culture

Samples in periodicals archive:

Reconsideration of the anatomy of sling left pulmonary artery: The association of one form with bridging bronchus and imperforate anus.
There is a 40% incidence of coexistant anatomical abnormalities: choledochocele, annular pancreas, double diverticula, intestinal malrotation, imperforate anus, Hirschsprung's disease, congenital heart diseases, omphalocele, hypoplastic kidneys, bladder exstrophy, situs inversus, Ladd's bands, portal vein anomalies, polysplenia and Down syndrome (6,7).
Here, the plan is reminiscent of Leiviska's Myyrmaki church (AR June 1994), where he made an almost imperforate back wall against a busy commuter train line and allowed daylight to enter mainly from side windows, streaming over the parallel solid planes that form the volume of the church.