different between litmus vs roccella

English

Etymology

From Middle English litmose, lytmose, litemose, from Old Norse litmosi (“moss used for dyeing”), from lita (“to dye, stain”), from litr (“colour, dye, blee”), from Proto-Germanic *wlitiz, *wlituz (“appearance, blee”), from Proto-Indo-European *wel- (“to see”) + mosi (“moss”). Cognate with Old English wlite (“appearance, form, brightness, countenance”). More at moss.

Pronunciation

• IPA^(key): /?l?tm?s/

Noun

litmus (countable and uncountable, plural litmuses)

1. (uncountable) A dyestuff extracted from certain lichens, that changes color when exposed to pH levels greater than or less than certain critical levels.
2. A simple test of acidity in a liquid using litmus, usually in the form of litmus paper.
3. A simple test of any attribute; a litmus test.

Synonyms

• (dyestuff from lichen): lacmus

Derived terms

• litmus paper
• litmus test

Translations

See also

• Roccella tinctoria
• Roccella fuciformis
• Roccella pygmaea
• Roccella phycopsis
• Lecanora tartarea
• Variolaria dealbata
• Ochrolechia parella
• Parmotrema tinctorum
• Parmelia
• Roccella montagnei
• Dendrographa leucophoea

Anagrams

• multis, slum it, sultim, tilmus

English

Wikispecies

Etymology

From the genus name.

Noun

roccella (plural roccellas)

1. Any of a group of lichens of genus Roccella, especially Rocella tinctoria from which litmus is extracted.

Italian

Noun

roccella f (plural roccelle)

1. roccella