tosca

noun
tos·​ca | \ ˈtōskə \
plural -s

Definition of tosca

1 : a calcium carbonate deposit occurring in the loess of the pampas — compare caliche
2 : a soft coral limestone deposit used for various purposes in Puerto Rico (as for masonry, road surfacing, ballast, and as fertilizer)

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History and Etymology for tosca

American Spanish, from Spanish, feminine of tosco rough, unpolished, uncouth, probably from Latin tuscus Tuscan; from the disreputable character of the inhabitants of the Vicus Tuscus Tuscan Street in ancient Rome

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Cite this Entry

“Tosca.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tosca. Accessed 22 Jun. 2021.

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