Refers to discomfort or distress that is associated with a discrepancy between a person’s gender identity and that person’s sex assigned at birth (and the associated gender role and/or primary and secondary sex characteristics).

American Psychological Association – Divisions 16 and 44. (2015). Key terms and concepts in understanding gender diversity and sexual orientation among students [Pamphlet]. Retrieved from http://www.apa.org/pi/lgbt/programs/safe- supportive/lgbt/key-terms.pdf.