See Also: ricin(medicine)
ricin(dictionary)

testosterone (iou) and ricin (medicine)


testosterone (iou)



testosterone noun. M20.
[from TESTIS + -O- + -STERONE.]
Biology. A steroid hormone that stimulates the development of male secondary sexual characteristics, produced in the testes and, in very much smaller quantities, in the ovaries and adrenal cortex.
Comb.: testosterone propionate Pharmacology the propionic acid ester of testosterone, given parenterally as a longer-lasting alternative to testosterone.

ricin (medicine)


ricin
<protein> Highly toxic lectin (66 kD) from seeds of the castor bean, Ricinus communis. Has toxic A subunit (32 kD), carbohydrate binding B subunit (34 kD). Toxic subunit inactivates ribosomes and the binding subunit is specific for _ galactosyl residues.