autosome

This term is used exclusively within genetics and cytology to distinguish non-sex chromosomes from allosomes. It carries a neutral, scientific connotation and is typically employed in academic papers, medical textbooks, or laboratory reports to describe the genetic blueprint that does not determine the biological sex of an organism.

Because it refers to a discrete physical structure within a cell, it follows standard countability rules for biological entities. It is frequently used in the plural form when discussing the entire set of non-sex chromosomes in a genome.