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stigma

n.
US //ˈstɪɡmə// UK //stˈɪɡmɐ// stig·ma
  1. 1 part of a flower (n.)
    C2 Proficiency Technical Botany

    the top part of the centre of a flower where pollen is received.

    the receptive tip of a carpel, or of several fused carpels, in the gynoecium of a flower.

    Example

    Bees carry pollen from one flower and drop it onto the stigma of another.

    Example

    The stigma is often sticky or hairy to ensure that pollen grains transferred by insects remain in place for germination.

  2. 2 medical sign (n.)
    C2 Proficiency Technical Medicine

    a physical mark or sign on the body that shows someone has a specific disease.

    a visible sign or characteristic of a disease or a physical abnormality.

    Example

    The doctor looked for physical stigmas that might suggest a liver problem.

    Example

    Clinical examination revealed several cutaneous stigmas associated with chronic nutritional deficiency.

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  1. 3 Greek letter (n.)
    C2 Proficiency Archaic Technical

    a special symbol used in the Greek alphabet to represent the letters 's' and 't' together.

    a ligature of the Greek letters sigma and tau, used in some historical texts and as a numeral for six.

    Example

    The old manuscript used a stigma instead of writing the two letters separately.

    Example

    In Greek gematria, the stigma is used to represent the number six, though it is rarely encountered in modern typography.

Etymology 1

From Latin stigma, from Ancient Greek στίγμα (stígma, “mark of slavery or disgrace”), from στίζω (stízō, “to mark”). Closely related to stigme, and distantly related to stick.

Etymology 2

From Byzantine Greek στίγμα (stígma), likely coined by analogy with σίγμα (sígma).

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