Stigma (plural: stigmata) may refer to: In biology: Stigma (anatomy), a small spot, mark, scar, or minute hole In a flower, the stigma's the terminal portion of the gynoecium that's no epidermis and's meant to receive pollen. The eyespot apparatus of unicellular organisms, for example Euglena and Chlamydomonas Stigma of the eye In discrimination: Stigma of the original sin in Christianity Stigma of the forehead spot in Indian Caste Badge of shame, a mark of infamy or disgrace Social… (More on Stigma)