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Glite Dictionary
roccella

roccella

9.9
A small plant-like growth on rocks used to make purple and blue dyes
  • noun
  • /roʊˈsɛlə/
  • Specialized
: roccella
  • Roccella has historically been harvested along Mediterranean coasts to produce purple and blue dyes.

Examples

  • Litmus paper owes its color-changing ability to substances derived from roccella.

  • The chemical properties of roccella make it valuable for traditional dyeing processes.

  • The roccella plant is known for its vibrant colors.

  • Many artists use roccella to create natural dyes.

  • Roccella has historically been harvested along Mediterranean coasts to produce purple and blue dyes.

  • Litmus paper owes its color-changing ability to substances derived from roccella.

  • The chemical properties of roccella make it valuable for traditional dyeing processes.

Synonyms

Roccella tinctoria
vsroccella
  • Specialized
9.9

A lichen used to make archil and litmus dyes

is a genus covering multiple species used for those dyes

Compounds

Roccella tinctoria
  • Specialized
9.9

A lichen used to make archil and litmus dyes

Surface Forms

roccella singular
roccellas plural

Etymology

Roccella probably comes from the Italian word roccia meaning 'rock', like the English word 'rock', because these lichens grow on seaside rocks. That's why roccella was long used to make purple and blue dyes such as archil and litmus.