turmeric paper
English
Noun
turmeric paper (countable and uncountable, plural turmeric papers)
- (chemistry) Paper impregnated with turmeric, used as a test of acidity. For alkaline substances, it is changed from yellow to brown.
References
- “turmeric”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.