An involuntary deep inspiration with the mouth open, often accompanied by the act of stretching.

A plant species of the family AQUIFOLIACEAE. It has been used to induce vomiting in purification rites.

A genus of the family POXVIRIDAE, subfamily CHORDOPOXVIRINAE, causing tumors in primates. The type species is YABA MONKEY TUMOR VIRUS.

A genus of ascomycetous yeast in the family Dipodascaceae, order SACCHAROMYCETALES.

A genus of ascomycetous yeast in the family Dipodascaceae, order SACCHAROMYCETALES.

A plant genus of the family CYPERACEAE. SESQUITERPENES are found in some of the species.

In Chinese philosophy and religion, two principles, one negative, dark, and feminine (yin) and one positive, bright, and masculine (yang), from whose interaction all things are produced and all things are dissolved. As a concept the two polar elements referred originally to the shady and sunny sides of a valley or a hill but it developed into the relationship of any contrasting pair: those specified above (female-male, etc.) as well as cold-hot, wet-dry, weak-strong, etc. It is not a distinct system of thought by itself but permeates Chinese life and thought. A balance of yin and yang is essential to health. A deficiency of either principle can manifest as disease. (Encyclopedia Americana)

A human and animal pathogen causing mesenteric lymphadenitis, diarrhea, and bacteremia.

The etiologic agent of PLAGUE in man, rats, ground squirrels, and other rodents.

A species of the genus YERSINIA, isolated from both man and animal. It is a frequent cause of bacterial gastroenteritis in children.