metacentric

adjective

1. Naval Architecture. of or relating to a metacenter.
2. Genetics. of or relating to any chromosome or chromatid whose centromere is centrally located, creating two apparently equal chromosome arms.Compare acentric(def 2), acrocentric, telocentric.

adj.

1. Having the centromere of a chromosome in the median position so that the arms are of equal length.

n.

1. A metacentric chromosome.