[noun] [C] [formal] - an unusual growth on an animal or one of its organs or on a plantIncreasing numbers of fish are being caught with excrescences on various parts of their body.(figurative) The new office development is an excrescence (= ugly growth) on the city.
EXCRESCENCE
Meaning of EXCRESCENCE in English
Cambridge English vocab. Кембриджский английский словарь. 2012