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siriasis

[si-rahy-uh-sis]
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noun Pathology.
  1. sunstroke.
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Origin of siriasis

1595–1605; < Latin sīriāsis < Greek seiríāsis, equivalent to seiri(ân) to be hot, scorching (derivative of Seírios Sirius) + -āsis -asis
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018