supergranulation cell

[ soo-per-gran-yuh-ley-shuh n ]
/ ˌsu pərˌgræn yəˈleɪ ʃən /

noun Astronomy.

one of a number of large convection cells in the photosphere and chromosphere of the sun, each having a diameter of 10,000–20,000 miles (16,000–32,000 km) and lasting longer than a day.

Nearby words

  1. supergiant star,
  2. superglacial,
  3. superglue,
  4. supergovernment,
  5. supergrade,
  6. supergraphics,
  7. supergrass,
  8. supergravity,
  9. supergroup,
  10. superharden

Origin of supergranulation cell

First recorded in 1970–75; super- + granulation

Also called su·per·gran·u·la·tion.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019