D defs.my
Entry 1 sense Webster, 1913

Bicycling

/bīs'-ĭkˌ-əl-ĭng/ · Bi·cy·cling · IPA /bˈaɪsˌɪkəlɪŋ/
01 n. The use of a bicycle; the act or practice of riding a bicycle.
  1. 1.
    The use of a bicycle; the act or practice of riding a bicycle.