See Also: tree of heaven(encyclopedia)
Biological Response Modifier(health)
biological response modifier(medicine)
biological response modifiers(medicine)
Herbal medicine (botanical medicine, herbology, phytomedicine)(health)
heaven-sent(dictionary)
heaven(2)(dictionary)
heaven(1)(dictionary)
Heaven on Seven(tourism)
heaven(encyclopedia)

biological response modifier (medicine) and tree of heaven (sh)


biological response modifier (medicine)


biological response modifier
<pharmacology, oncology> A substance used in adjuvant therapy that takes advantage of the bodys own natural defense mechanisms to inhibit the growth of a tumour.


tree of heaven (sh)




Rapid-growing tree (Ailanthus altissima) in the quassia family (Simaroubaceae), native to China and widely naturalized elsewhere, with several known varieties.

Because of its resistance to pollution, freedom from insect predation and disease, and ability to grow in almost any soil, the tree of heaven is planted as a yard and street tree in urban centres. It grows to 60 ft (18 m) or more, producing long, compound leaves that emit an unpleasant odour when bruised. Male trees bear flowers with unpleasant scents. Female trees produce winged fruits which are tannish orange when ripe.