litmus lichen; litmus indicator
Tone colorsmāmámǎmàma
Meanings
2 senses · 5 examplesnoun
litmus lichen; a type of lichen growing in cold regions, gray-white or pale yellow in color
Refers to the biological organism used to produce litmus dye and litmus paper.
Shí石
ruǐ蕊
shēng生
zhǎng长
zài在
hán寒
lěng冷
de的
běi北
jí极
dì地
qū区
。
Litmus lichen grows in the cold Arctic regions.
Zhè这
zhǒng种
huī灰
bái白
sè色
shí石
ruǐ蕊
kě可
yǐ以
yòng用
lái来
zhì制
zuò作
rán染
liào料
。
This gray-white litmus lichen can be used to make dye.
noun
litmus; blue amorphous powder used as an acid-base indicator in analytical chemistry
technicalCommonly used in laboratories to test pH levels, turning red in acid and blue in alkali. Usually encountered as litmus paper (石蕊试纸) or litmus solution (石蕊溶液).
Shí石
ruǐ蕊
róng溶
yè液
zài在
suān酸
xìng性
huán环
jìng境
zhōng中
huì会
biàn变
chéng成
hóng红
sè色
。
Litmus solution turns red in acidic environments.
Huà化
xué学
shí实
yàn验
shì室
cháng常
yòng用
shí石
ruǐ蕊
shì试
zhǐ纸
jiǎn检
cè测
róng溶
yè液
de的
suān酸
jiǎn碱
xìng性
。
Chemistry laboratories often use litmus paper to test the acidity or alkalinity of solutions.
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Zhè这
píng瓶
shí石
ruǐ蕊
fěn粉
mò末
xū需
yào要
cún存
fàng放
zài在
gān干
zào燥
de的
dì地
fāng方
。
This bottle of litmus powder needs to be stored in a dry place.