From Longman Dictionary of Contemporary Englishcowgirlcow‧girl /ˈkaʊɡɜːl $ -ɡɜːrl/ noun [countable] BOTAin the US, a woman who rides a horse and whose job is to care for cattle
Examples from the Corpus
cowgirl• Women in white boots, short shorts and frilly cowgirl outfits kicked up their heels on it.• She envisioned an outreach effort with Rimes and enough feel-good songs to cheer little cowgirls and cowboys around the globe.• I just figured since I was doing a film on cowgirls, I needed to try it myself.• She got up waveringly, disappearing in the nebulous direction in which the cowgirl had gone.• The cowgirl was apparently popular, for little squeals of delight from females went up instantly at her entrance. 