different between frilling vs prilling

English

frilling

frilling (plural frillings)

A frilled ornamentation on clothing.
- 1860?, Charles Dickens, Great Expectations
  So she sat, corpselike, as we played at cards; the frillings and trimmings on her bridal dress, looking like earthy paper.

prilling (uncountable)

The solidification of droplets of molten material falling against an upward stream of air; used especially to agglomerate ammonium nitrate and urea for use as a fertilizer.
- 2005, Douglas K. Louie, Handbook of Sulfuric Acid Manufacturing, page 5-11
  In air prilling, molten sulphur is sprayed from the top of a tower against an upward flow of air. As the sulphur falls, the sulphur droplets break into small droplets and cools into prills.

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