In Jewish tradition, the term ay'lonit (איילונית in Hebrew, translation "ram-like woman") refers to a person born female at birth who later developed "male characteristics". During puberty, an ay'lonit will not develop secondary-sex characteristics and is assumed to be infertile.[1] The secondary-sex characteristics are referred to as "male" characteristics in the Talmud. "Male characteristics" can include a deeper voice, painful intercourse, small breasts, a lack of pubic hair, a period, and a normal libido[2]
In traditional Judaism, gender plays a central role in legal obligations[3] (see also mitzvah). Thus, the gender identities of the Talmud (see also androgynos, tumtum, and saris) were created for the purpose of fitting into their legal system. While considered gender-identities, they should not be read under a modern definition.