excursion[L. excursio: cf. F. excursion. See Excurrent.]1. A running or going out or forth; an expedition; a sally.()Far on excursion toward the gates of hell. (Milton.)They would make excursions and waste the country. (Holland.)2. A journey chiefly for recreation; a pleasure trip; a brief tour; as, an excursion into the country.()3. A wandering from a subject; digression.()I am not in a scribbling mood, and shall therefore make no excursions. (Cowper.)4. (Mach.) Length of stroke, as of a piston; stroke. [An awkward use of the word.]()()