intersex UK /ˈɪn.tə.sɛks/US /ˈɪn.təɹ.sɛks/noun 3adjective 1verb 1forms 3 noun3 •The condition of being intersex; intersexuality.A Canadian believes that he has solved the diagnostic problem in human intersex. All human cells, says Dr. Murray L. Barr of the University of Western Ontario, contain something called sex chromatin. — 1953 •An individual with any of these conditions.Conversely, a fertilized egg with one X-chromosome would develop not into a male but into an intersex […] — 1955 •A person who can get pregnant and also impregnate someone else. adjective1 •Of an individual, having any of a variety of inherent conditions (in a species with distinct sexes) in which one's sex characteristics differ from those of a typical male and female; for example, having sex characteristics relating to both male and female sexes.When I had learned that I was intersex, I brought this issue to my mother. — 2010 verb1 •(nonstandard) To make intersex. formsintersexed · intersexing · intersexes