acrocentric chromosome acrocentric chromosome /ˌækroʊˈsɛntrɪk ˈkroʊməˌsoʊm/

noun

1. A chromosome with the centromere near one end so that one chromosomal arm is short and one is long  ( acrocentric chromosome )
   a chromosome with the centromere near one end so that one chromosomal arm is short and one is long