1. A reference to nonsexual reproduction, as by fission, budding, etc.: Some species reproduce without sexual unions or by germinating without impregnation; such as, agamic or unfertilized eggs.
2. A reference to organisms in which all individuals reproduce asexually: Agamic sponges can reproduce by simply fragmenting their bodies and each small portion grows and produces to a new sponge.

In agamic reproduction, the offspring are usually genetically identical to their parents.

Most of unicellular yeast-fungi result from agamic reproduction that takes place by cell fission or the formation of a small cell from a part of a larger one.