: a dye derived from thymol that is an acid-base indicator

Word History

First Known Use

1920, in the meaning defined above

Time Traveler
The first known use of bromthymol blue was in 1920

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Cite this Entry

“Bromthymol blue.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/bromthymol%20blue. Accessed 1 Apr. 2025.

Kids Definition

bromthymol blue

noun
: a dye that is an acid-base indicator

called also bro*mo*thy*mol blue\ ˌbrō-​mō-​ \

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