stigma

(n) the apical end of the style where deposited pollen enters the pistil
(n) a symbol of disgrace or infamy
- "And the Lord set a mark upon Cain"--Genesis
stain, brand, mark,
(n) an external tracheal aperture in a terrestrial arthropod
(n) a skin lesion that is a diagnostic sign of some disease

stain brand mark

stigmata stigmatic stigmatisation stigmatise stigmatism stigmatist stigmatization stigmatize