fourchette

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A narrow, forked strip of material joining the front and back sections of the fingers of gloves.
• noun Anatomy A small band or fold of mucous membrane forming the posterior margin of the vulva and connecting the posterior ends of the labia majora.

from The Century Dictionary.

• noun In surgery, an instrument used to raise and support the tongue during the operation of dividing the frenum.
• noun In glove-making, the side of a finger, to which the front and back portions are sewed. Also forgette.
• noun In ornithology, the furcula or united clavicles of a bird; the merrythought or wishbone of a fowl.
• noun In anatomy, the frenulum pudendi; the small thin fold just within the posterior commissure of the vulva, separated therefrom by the fossa navicularis, and commonly ruptured in first parturition.
• noun The combination in one hand of the cards immediately above and below the one led, such as queen and 10 over a jack.

from the GNU version of the Collaborative International Dictionary of English.

• noun A table fork.
• noun A small fold of membrane, connecting the labia in the posterior part of the vulva.
• noun The wishbone or furculum of birds.
• noun The frog of the hoof of the horse and allied animals.
• noun (Surg.) An instrument used to raise and support the tongue during the cutting of the frænum.
• noun (Glove Making) The forked piece between two adjacent fingers, to which the front and back portions are sewed.
• noun (Card Playing) The combination of the card immediately above and the one immediately below a given card.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun anatomy A fork-shaped structure, specifically the fold of skin where the labia minora meet above the perineum (the frenulum labiorum pudendi).
• noun A fork-shaped instrument or device, specifically the forked structure between two fingers of a glove.
• noun surgery An instrument used to raise and support the tongue during the cutting of the frenulum.
• noun The wishbone or furculum of birds
• noun The frog of the hoof of the horse and allied animals.