Act of getting or draining something such as electricity or a liquid from a source(noun)
WordNet. Princeton University. 2010.
Use "drawing off" in a sentence
"The attack on Verdun had become a bloodbath for both sides, the British were pressing hard on the Somme, and the Russian Brusilov offensive in the east had produced a near fatal Austrian collapse, drawing off German reserves."
"But above that, the best use we can make of the country for some time, will be to give establishments in it to the Indians on the East side of the Missipi, in exchange for their present country, and open land offices in the last, & thus make this acquisition the means of filling up the Eastern side, instead of drawing off it's population."
"The light of the cheerful fire shone on the rug and carpet of a cosey parlor, and glittered on the sides of the tea-cups and well-brightened tea-pot, as Senator Bird was drawing off his boots, preparatory to inserting his feet in a pair of new handsome slippers, which his wife had been working for him while away on his senatorial tour."