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 actually a type of chronic leukemia â cancer that upsets the tissues that are blood-forming in the body. This disorder can happen on its own (primary myelofibrosis) or it may occur because of other disorders of the bone marrow (secondary myelofibrosis).