misdivision
/ˌmɪsdɪˈvɪʒn/noun
1Incorrect division, especially of a word.
2 Genetics and Cell Biol. Abnormal division of a chromosome, nucleus, or cell at meiosis or mitosis; especially transverse, rather than longitudinal, division of a centromere.
Origin
Late 19th century; earliest use found in The Century Dictionary. From mis- + division, after misdivide.