ingroup

Etymology
From.

Noun

 * 1)  The social group that one belongs to.
 * 2)  In cladistics, the monophyletic group that includes all taxa of interest to the current study.
 * 3) * 2009 January 15, Martin D. Brazeau, “The braincase and jaws of a Devonian 'acanthodian' and modern gnathostome origins”, Nature Volume 457 No. 7227, doi:10.1038/nature07436:
 * A cladistic analysis of 45 ingroup and two outgroup taxa was performed on the basis of 134 characters.
 * 1)  In cladistics, the monophyletic group that includes all taxa of interest to the current study.
 * 2) * 2009 January 15, Martin D. Brazeau, “The braincase and jaws of a Devonian 'acanthodian' and modern gnathostome origins”, Nature Volume 457 No. 7227, doi:10.1038/nature07436:
 * A cladistic analysis of 45 ingroup and two outgroup taxa was performed on the basis of 134 characters.
 * A cladistic analysis of 45 ingroup and two outgroup taxa was performed on the basis of 134 characters.

Verb

 * 1) To form an ingroup.