cotwin

From Wiktionary, the free dictionary
Jump to navigation Jump to search

English[edit]

Alternative forms[edit]

Etymology[edit]

co- +‎ twin

Noun[edit]

cotwin (plural cotwins)

  1. A twin's twin.
    • 2013, Issues in Clinical Psychology, Psychiatry, and Counseling:
      In contrast, if a psychopathologic feature is acquired as a result of an environmental factor unique to the exposed twin, eg, the traumatic event, their cotwins should not have an increased incidence of the feature.