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litmus paper
1 ENTRIES FOUND:
litmus paper
(noun)
litmus paper
/
ˈ
lɪtməs-/
noun
litmus paper
/
ˈ
lɪtməs-/
noun
Britannica Dictionary definition of LITMUS PAPER
[
noncount
]
technical
:
special paper that is used to test how much acid is in a solution
◊ Litmus paper turns red in acid solutions and blue in alkaline solutions.
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external
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located, seen, or used on the outside or surface of something
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