From Longman Dictionary of Contemporary Englishballet dancerˈballet ˌdancer / $ .ˈ. ˌ../ noun [countable] 
APDsomeone who dances in ballets
APDsomeone who dances in balletsExamples from the Corpus
ballet dancer• I felt weightless, light as a ballet dancer.• Poor Brady, a ballet dancer in a bearpit.• He is a sensational, irresistible presence who has the composure and concentration of a ballet dancer.• Look at her, May jeered, nodding over the road, thinks she's a ballet dancer.• I get as big a kick out of watching Seb on the top curve as I do watching a ballet dancer.• A ballet dancer who does not practise every day loses a lot of skill, as does a musician.• I lift her soft and easy as a male ballet dancer would lift Giselle.• He became like a male ballet dancer - a support to lift up his glamorous partner and help her turn beautiful pirouettes. 