Labia minora

The labia minora (singular: labium minus) are two small longitudinal cutaneous folds, situated between the labia majora, and extending from the clitoris obliquely downward, lateralward, and backward for about 4 cm. on either side of the vulval vestibule, between which and the labia majora they end; in the virgin the posterior ends of the labia minora are usually joined across the middle line by a fold of skin, named the frenulum labiorum pudendi or fourchette.
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Labia mi·no·ra pl.n. The two thin inner folds of skin within the vestibule of the vagina enclosed within the cleft of the labia majora. [more]Labia minora - Community and Resources

Noun
1. the two inner folds of the vulva
(hypernym) labium
(part-holonym) vulva

The smaller (minor) inside pair of labia (lips) of the vulva (the female external genitalia).

PICCOLE LABBRA