noun

• (figurative) A negative and often unfair attitude (held by a group or society, to something).
  "Yet, because of the stigma around nursing home placement, it is hard to find advocates from among the natural advocacy groups the families. You don't see families organized around long-term care as you do around specific diseases."
• (Christianity, chiefly in the plural stigmata) A mark on the body corresponding to one of the wounds of the Crucifixion on Jesus's body, and sometimes reported to bleed periodically.
• (literary, figurative) An outward sign; an indication.
  "Bradly scowled - the stigmata of alarm. What ultimate threat to his peace and privacy did this dropping in by young Podson imply?"
• (botany) The sticky part of a flower that receives pollen during pollination.
  "Black crowberry. Empetrum nigrum. Crowberry Family. Fruit. — The black drupe is berrylike, globular, and incloses six to nine seedlike nutlets with a seed in each. The calyx is at the base and the stigma is at the apex. The drupes are solitary in the leaf axils. They are juicy, acid, edible, and serve as food for the Arctic birds."

noun

• (typography) A ligature of the Greek letters sigma and tau, (Ϛ/ϛ).