noun, plural tank·fuls.
Examples from the Web for tankful
Jimmy Shovel climbed over the coal to see, and reported less than half a tankful.Empire Builders|Francis Lynde
In this emergency a tankful of sand is better than all the air Westinghouse ever stored.Held for Orders|Frank H. Spearman
They beat out the sparks with wet blankets, and chopped, and squirted that tankful of water, and behaved like heroes.Dear Enemy|Jean Webster
I did not inquire, for our tankful lasted us the week of our stay.The Car That Went Abroad|Albert Bigelow Paine
Oil in small cans is worth far more for consumption than it would be if each consumer were forced to buy a tankful.Essentials of Economic Theory|John Bates Clark