piece of paper is used to test materials for acidity, turning red when acidic and blue when alkaline, pabeririba, mis on kasutusel materjalide testimiseks happesuse suhtes, muutudes happelise keskkonna korral punaseks ja siniseks, kui on aluseline keskkond
blue, water-soluble powder from various lichens, especially Variolaria lecanora and V. rocella; turns red in solutions at pH 4.5 and blue at pH 8.3; used as an acid-base indicator, lakmussamblikust saadav indikaator
lacmus 2 . EKI terminibaas Esterm. Институт эстонского языка, Сынавееб 2026. https://sonaveeb.ee/search/unif//esterm/lacmus/2/eng (19.06.2026)
