The yellow jack is a species of offshore marine fish in the jack family.

"When he refuted their belief that yellow jack was an infectious or a contagious disease, they challenged him to provide proof."

The fourth type was the black vomit, or the yellow jack.

While the other physicians watched, he had collected a wine glass of fresh vomit from a victim of the yellow jack.

It was the fever, whether malaria or yellow jack, I'm not sure.

Ahead, he could see the jacks of sector six, yellow against the bloodred meteorite.

Still, yellow jack or blackwater fever might yet take 'em off before they get home to spend their loot.

The Portuguese man o' war is often found with a variety of other marine fish, including clownfish and yellow jack.

The Hannibal recently lost 200 men from yellow jack.

Some of them are shepherd fish, clown fish and yellow jack.