Definition of "outgroup" in Englisch

noun

1. (sociology) The group of people who do not belong to one's own social group.

2. (systematics) In cladistics, all the taxa included in a study that do not belong to the ingroup that is of immediate interest.

   • A cladistic analysis of 45 ingroup and two outgroup taxa was performed on the basis of 134 characters.

verb

1. To form an outgroup.