Wiktionary
beakerful
n. The amount that a beaker will hold.
Usage examples of "beakerful".
Then, with the aid of this funnel, I'm going to pour down a hefty beakerful of acid.
Now to make this potion we must have three pair of good fat capons, and, for divers other ingredients, thou wilt give one of thy friends here five pounds in small change to purchase them, and thou wilt have everything sent to my shop, and so, please God, I will send thee this distilled potion to-morrow morning, and thou wilt take a good beakerful each time.