1. A pad or cushion for an extra rider behind the saddle on a horse or motorcycle.
2. A bicycle or motorcycle saddle.
[Probably fromScottish Gaelicpillean, diminutive ofpeall, rug, orIrish Gaelicpillín, diminutive ofpell, rug, both fromOld Irishpell, fromLatinpellis, animal skin; see pel-3 in the Appendix of Indo-European roots.]
(click for a larger image)pillion
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