Usually with hyphen. Of a vehicle: having tall or large wheels; specifically designating a bicycle with a large front wheel and a small rear one, popular from the early 1870s to the mid 1890s; an ordinary or penny farthing (now historical).

1A spinning-wheel on which the spindle is driven by a very large wheel, especially one worked by hand.

2A bicycle with a large front wheel and a small rear one; a penny farthing.