1. outgroup - Noun
2. outgroup - Verb
(sociology) The group of people who do not belong to one's own social group.
(systematics) In cladistics, all the taxa included in a study that do not belong to the ingroup that is of immediate interest.
outgroup (third-person singular simple present outgroups, present participle outgrouping, simple past and past participle outgrouped)
To form an outgroup.
Such altruism may only extend to ingroup members while there may instead prejudice and antagonism against outgroup members (See also in-group favoritism ). Source: Internet
States shared between the outgroup and some members of the in-group are symplesiomorphies; states that are present only in a subset of the in-group are synapomorphies. Source: Internet
Racial discrimination often coincides with racist mindsets, whereby the individuals and ideologies of one group come to perceive the members of an outgroup as both racially defined and morally inferior. Source: Internet
P. elongata, P. turneri and P. presidionis form another clade which could be considered an outgroup to the P. monacha, P.lucida, and P. prolifica clade. Source: Internet