Webster Dictionary(0.00 / 0 votes)Rate this definition: 1  Praecipe(noun) a writ commanding something to be done, or requiring a reason for neglecting it. 2  Praecipe(noun) a paper containing the particulars of a writ, lodged in the office out of which the writ is to be issued.
Neurofibromatosis type 2 is a disorder characterized by the growth of noncancerous tumors in the nervous system. The most common tumors associated with neurofibromatosis type 2 are called vestibular schwannomas or acoustic neuromas. These growths develop along the nerve that carries information from the inner ear to the brain (the auditory nerve).
Myelofibrosis is a serious bone marrow disorder that disrupts your body's normal production of blood cells. The result is extensive scarring in your bone marrow, leading to severe anemia, weakness, fatigue, and often, an enlarged spleen and liver.