The Collaborative International Dictionary
Van-courier
Van-courier \Van"-cou`ri*er\, n. [F. avant-courrier. See Avant, Van of an army, and Courier, and cf. Avant-courier, Vaunt-courier.] One sent in advance; an avant-courier; a precursor.
Wiktionary
van-courier
n. One sent in advance; an avant-courier; a precursor.