Bromothymol blue has 2 different meanings across 1 category:
Noun
a dye used as an acid-base indicator
A dye, 4,4'-(3H-2,1 benzoxathiol-3-ylidene) bis [2 bromo-3-methyl-6-(1-methylethyl)phenol] S,S-dioxide, which is used as an acid-base indicator