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cotwin. In DICTIOUS you will not only get to know all the dictionary meanings for the word
cotwin, but we will also tell you about its etymology, its characteristics and you will know how to say
cotwin in singular and plural. Everything you need to know about the word
cotwin you have here. The definition of the word
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English
Etymology
co- + twin
Noun
cotwin (plural cotwins)
- 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.