Definition of "appreciable"

A grain of musk will scent a drawer for many years, and still lose nothing appreciable of its original weight.

1865, Charles Dickens, chapter 15, in Our Mutual Friend

For an appreciable time he did not think of rising from his seat.

1915, P. G. Wodehouse, chapter 1, in Something New

Anti-freeze has not been found necessary, even in the most severe conditions, since the water is drained out if a locomotive spends any appreciable time out of service and in normal working conditions the coolant is always warm.

1962 October, M. J. Wilson, “Three years of dieselisation at Devons Road depot”, in Modern Railways, page 264

If NEAsia were a zone of peace, those American forces would be unnecessary and they could be sent home and demobilized, saving the U.S. taxpayer an appreciable sum of money.

2002, John J. Mearsheimer, "Realism, the Real World, and the Academy," in Realism and Institutionalism in International Studies (M. Brecher and F. P. Harvey, eds.), p. 27