Noun
aDNA (countable and uncountable, plural aDNAs)
English Wikipedia has an article on:ancient DNAWikipedia
(genetics) Any DNA sample recovered from biological samples not intended for DNA use, including historical and archeological samples.
During maneuvers the Third Army conducted in 1940, Patton served as an umpire, where he met Adna R. Chaffee Jr. and the two formulated recommendations to develop an armored force. Source: Internet
Slocum, Carl Reichmann, Adna Romanga Chaffee, a publication from 1901 now in the public domain in the United States. Source: Internet
Slocum, Carl Reichmann, Adna Romanza Chaffee, United States. Source: Internet