Meaning of ST JOHN'S WORT

WordNet Dictionary
	Definition:		[n]  any of numerous plants of the genus Hypericum having yellow flowers and transparently dotted leaves; traditionally gathered on St John's eve to ward off evil
	See Also:		common St John's wort, creeping St John's wort, genus Hypericum, great St John's wort, Hypericum, Hypericum androsaemum, Hypericum ascyron, Hypericum calycinum, Hypericum crux andrae, Hypericum gentianoides, Hypericum hypericoides, Hypericum maculatum, Hypericum perforatum, Hypericum prolificum, Hypericum pyramidatum, Hypericum spathulatum, Hypericum tetrapterum, Hypericum virginianum, klammath weed, low St Andrew's cross, marsh St-John's wort, nitweed, orange grass, pineweed, shrubby St John's wort, St Andrews's cross, St Peter's wort, subshrub, suffrutex, tutsan
Medical Dictionary
	Definition:		Hypericum perforatum. An herbal product sold as an over-the-counter treatment for depression. It is being studied for its ability to lessen certain side effects of cancer treatment.