释义 |
rat unit
rat unit An obsolete, semi-quantitative unit corresponding to the minimum amount of an oestrogenic substance required to produce characteristic desquamation of vaginal epithelium in ovarectomised rats.rat unit, R.U.The greatest dilution of estrogen that will cause desquamation and cornification of the vaginal epithelium if given to a mature spayed rat in three injections, one every 4 hr. AcronymsSeeRu |