Alternative form of abelian group

(medicine) The basic system of categorizing blood by antigen type.

(sports, jargon) A group in a multi-stage tournament which is unusually competitive, because the number of strong competitors in the group is greater than the number of qualifying places available for the next phase of the tournament.

(astronomy) A group of galaxies that hold together gravitationally.

(dated, psychotherapy) A gathering of people who intentionally meet and interact so that each member may improve his or her ability both to express feelings and to react with appropriate sensitivity to the feelings of others.

(inorganic chemistry) Group 6 of the periodic table, comprising chromium, molybdenum, tungsten and seaborgium

The practice of putting students together in groups of those with similar skills or needs, e.g. in classes or in groups within a class.

(group theory) A group which has no normal subgroups apart from the trivial group and itself.

(group theory) A group obtained from a larger group by aggregating elements via an equivalence relation that preserves group structure.

(group theory) The unique group (up to isomorphism) consisting of a single element (which is the identity element).