Companies need appreciable time for their services to evolve and react to the needs of the market. (entrepreneur.com)
We found that significantly more individuals taken from the lakes where fishing was allowed had lower metabolic rates relative to the fish taken from the protected bodies of water, even though neither had actually spent any appreciable time in their natal environments.» (sciencedaily.com)
If the engine was run for any appreciable time after the coolant got into the engine, you'd get what is commonly known as «chocolate milk» on the dipstick. (mechanics.stackexchange.com)