psychotherapy in which a small group of individuals meet with a therapist; interactions among the members are considered to be therapeutic
(medicine) the act of caring for someone (as by medication or remedial training etc.)
any number of entities (members) considered as a unit
arrange into a group or groups
(chemistry) two or more atoms bound together as a single unit and forming part of a molecule
a set that is closed, associative, has an identity element and every element has an inverse
