Definition of supercrescent in US English:

supercrescent

adjective

rare
  • That grows or is growing over or on top of something.

Origin

Mid 17th century; earliest use found in Alexander Read (1586?–1641). From classical Latin supercrēscent-, supercrēscēns, present participle of supercrēscere to grow on top of a surface from super- + crēscere to grow.