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supergranulation cell

[ soo-per-gran-yuh-ley-shuhn ]
/ ˌsu pərˌgræn yəˈleɪ ʃən /
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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.
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Also called su·per·gran·u·la·tion.

Origin of supergranulation cell

First recorded in 1970–75; super- + granulation
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

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