litmus

English

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Litmus test (chemistry)

Wikipedia

Etymology

From 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

• IPA^(key): /ˈlɪtməs/

• Audio (Southern England):

  (file)

• Rhymes: -ɪtməs

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

• azolitmin
• litmus milk
• litmus paper
• litmus test

Translations

dyestuff from lichen

Bulgarian: лакмус m (lakmus) Chinese: Mandarin: 石蕊 (zh) (shíruǐ) Czech: lakmus m Dutch: lakmoes (nl) n Finnish: lakmus (fi) French: tournesol (fr) m Galician: tornasol (gl) m Georgian: ლაკმუსი (ka) (laḳmusi) German: Lackmus (de) m Greek: ηλιοτρόπιο (el) n (iliotrópio) Hungarian: lakmusz (hu) Italian: tornasole (it) m Japanese: リトマス (ja) (ritomasu) Latin: lacmus Macedonian: лакмус m (lakmus) Maori: tohu waikawa Persian: تورنسل (fa) (tornesol) Polish: lakmus (pl) m Portuguese: tornassol (pt) m Russian: ла́кмус (ru) m (lákmus) Spanish: tornasol m Swedish: lackmus (sv) c Tagalog: tornasol Turkish: turnusol (tr) Vietnamese: quỳ (vi)

See also

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

Anagrams

• multis, slum it, sultim, tilmus