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单词 facula
释义

WordReference Random House Unabridged Dictionary of American English © 2024
fac•u•la  (fak′yə lə),USA pronunciation n., pl. -lae (-lē′).USA pronunciation [Astron.]
  1. an irregular, unusually bright patch on the sun's surface.
  • Latin: little torch, equivalent. to fac- (stem of fax) torch + -ula -ule
  • 1700–10
fac′u•lar, adj. 

Collins Concise English Dictionary © HarperCollins Publishers::
facula /ˈfækjʊlə/ n ( pl -lae / -ˌliː/)
  1. any of the bright areas on the sun's surface, usually appearing just before a sunspot and subject to the same 11-year cycle
Etymology: 18th Century: from Latin: little torch, from fax torch

ˈfacular adj
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