litmus
English
editEtymology
editFrom Middle English litmose, lytmose, litemose, from Old Norse litmosi (“moss used for dyeing”), from lita (“to dye, stain”) + mosi (“moss”), the former from litr (“colour, dye, blee”), from Proto-Germanic *wlitiz, *wlituz (“appearance, blee”), from Proto-Indo-European *wel- (“to see”). Cognate with Old English wlite (“appearance, form, brightness, countenance”). More at moss.
Pronunciation
edit- IPA(key): /ˈlɪtməs/
Audio (Southern England): (file) - Rhymes: -ɪtməs
Noun
editlitmus (countable and uncountable, plural litmuses)
- (uncountable) A dyestuff extracted from certain lichens, that changes color when exposed to pH levels greater than or less than certain critical levels.
- A simple test of acidity in a liquid using litmus, usually in the form of litmus paper.
- A simple test of any attribute; a litmus test.
Synonyms
edit- (dyestuff from lichen): lacmus
Derived terms
editTranslations
editdyestuff from lichen
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See also
edit- Roccella tinctoria
- Roccella fuciformis
- Roccella pygmaea
- Roccella phycopsis
- Lecanora tartarea
- Variolaria dealbata
- Ochrolechia parella
- Ochrolechia tartarea
- Parmotrema tinctorum
- Parmelia
- Roccella montagnei
- Dendrographa leucophoea
Anagrams
editCategories:
- English terms inherited from Middle English
- English terms derived from Middle English
- English terms derived from Old Norse
- Old Norse compound terms
- English terms derived from Proto-Germanic
- English terms derived from Proto-Indo-European
- English 2-syllable words
- English terms with IPA pronunciation
- English terms with audio links
- Rhymes:English/ɪtməs
- Rhymes:English/ɪtməs/2 syllables
- English lemmas
- English nouns
- English uncountable nouns
- English countable nouns
- en:Lichens
- en:Dyes