טומטום

Hebrew

Root
א־ט־ם (ʾ-ṭ-m)

From the root א־ט־ם (ʾ-t-m). Compare with אָטוּם (ʾatúm, “closed”).

טומטום / טֻּמְטוּם • (tumtúm) m

(Jewish law, potentially offensive) A person or other being whose sex organs are externally lacking or ambiguous
- Mishneh Torah, Marriage 2:25
  וְכָל מִי שֶׁאֵין לוֹ לֹא זִכְרוּת וְלֹא נְקֵבוּת אֶלָּא אָטוּם הוּא הַנִּקְרָא טֻמְטוּם וְגַם הוּא סָפֵק. וְאִם נִקְרַע הַטֻּמְטוּם וְנִמְצָא זָכָר הֲרֵי הוּא כְּזָכָר וַדַּאי. וְאִם נִמְצָא נְקֵבָה הֲרֵי הוּא נְקֵבָה. וְטֻמְטוּם וְאַנְדְּרוֹגִינוּס שֶׁהָיוּ בֶּן שְׁתֵּים עֶשְׂרֵה שָׁנָה וְיוֹם אֶחָד הֲרֵי הֵן בְּחֶזְקַת גְּדוֹלִים וְהֵם שֶׁנְּדַבֵּר בָּהֶן בְּכָל מָקוֹם
  A person who possesses neither a male sexual organ nor a female sexual organ, but instead, his genital area is a solid mass, is called a tumtum. There is also doubt with regard [to this person's status]. If an operation is carried out and a male [organ is revealed], he is definitely considered to be a male. If a female [organ is revealed], she is definitely considered to be a female. When a tumtum or an androgyne reaches the age of twelve years and one day, they are assumed to be of age.

The term may be taken as offensive when used towards intersex persons in day-to-day contexts, especially since the halakhic definition does not seem to correspond to any known condition.