1835–6 I. 269/2 Their oar-like feet.
1887 J. F. T. Keane I. ii. 34 A true sea-snake, with flattened oar-like tail.
1920 54 293 When taking its frequent sand-baths, it [sc. the ostrich] rolls about in the dry sand or dust, from side to side, and at the same time uses its wings in an oar-like manner.
1978 Apr. 140/3 These oarlike hind legs can propel the backswimmer down through the water.