Of something having the yellow color of sulfur(adjective)
WordNet. Princeton University. 2010.
Use "sulfur-yellow" in a sentence
"When he stopped, a little sulfur-yellow butterfly landed on his back."
"They had a similar look to them - as if someone had crossed a dog with a serpent, getting something with a hound-shaped body, scaled skin, with the head a melding of viper and canine with sulfur-yellow eyes and fangs."
"This time she saw it arrive-or rather, she didn't see it; there was nothing but empty street one minute, and the next minute it was there, all teeth and claws and sulfur-yellow eyeballs."