Biology. An aggregate of individual organisms (of the same species) of any kind that are physically linked together to form a connected structure…

Specific uses. Biology (a) A group of three cells, e.g. spores. (b) A tertiary unit of organization consisting of an aggregate of dyads: cf. dyad, n.…

a structureless aggregate of distinct unicellular slime moulds which differentiates to form a fruiting body; = grex, n.