Definition of supergranulation in English:

supergranulation

noun

  • 1Medicine
    rare = hypergranulation .

  • 2Astronomy
    A large convective cell in the surface layer of the sun, thousands of miles in diameter; a pattern or system of such cells.

Origin

Late 19th century. From super- + granulation.

Pronunciation

supergranulation

/ˌsuːpəˌɡranjʊˈleɪʃn/ /ˌsjuːpəˌɡranjʊˈleɪʃn/