nucleotidylexotransferase

== English == === Etymology === From nucleotide +‎ -yl +‎ transferase. === Noun === nucleotidylexotransferase (usually uncountable, plural nucleotidylexotransferases) (biochemistry) A specialized DNA polymerase expressed in immature, pre-B, pre-T lymphoid cells, and acute lymphoblastic leukemia/lymphoma cells, which adds N-nucleotides to the V, D, and J exons during antibody gene recombination.