YAM n.
imbing plants of the genus Dioscorea; also, the plants themselves. Mostly natives of warm climates. The plants have netted-veined, petioled leaves, and pods with three broad wings. The commonest species is D. sativa, but several others are cultivated. Chinese yam, a plant (Dioscorea Batatas) with a long and slender tub…
YELLOW a.
yellow pigment. -- Yellow fever (Med.), a malignant, contagious, febrile disease of warm climates, attended with jaundice, producing a yellow color of the skin, and with the black vomit. See Black vomit, in the Vocabulary. -- Yellow flag, the quarantine flag. See under Quarantine, and 3d Flag. -- Yellow jack. (a) Th…