[mass noun] A reddish soil occurring on limestone in Mediterranean climates.
- ‘Soil-unique and soil-specific alleles were found in two edaphic groups dwelling on terra rossa and basalt soils across macro- and microgeographical scales.’
- ‘The Mediterranean soils of terra rossa on a limestone bedrock are suited to extensive cereal culture and to dry arboriculture.’
- ‘Some limestone soils, such as the Mediterranean terra rossa, are red-brown in colour; these are moderately alkaline and have a good clay-loam texture and structure.’
Late 19th century: Italian, literally red earth.